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Notes on the Hermle 451 Series

The Hermle 451 series clock movement is a chain driven, three weight, Westminster chime unit. This clock movement has square outer movement plates that are 120 x 120mm.

What is being offered on this page is the movement only with out the pendulum, gong or dial. These movement come as the movement itself with its hand nut and new chains, also comes with the suspension spring and leader.

  • Less cost than a cleaning in most cases
  • Should last 25-30 years, a repair would not
  • Easy to install, we can help if needed
  • Ships same day as order

Hermle Clock Movement 451

Selecting the correct movement

The numbers on the back plate of the movement is everything one needs to get a replacement.

If the numbers match then the movement matches.

If the clock is a pendulum unit, be sure to select the proper CM length that matches the old unit.

Hermle Clock Movement 451

Clock Movements

451-050 Movement

Front Side Back

  • 75, 85, 94, 114CM
  • 33.2mm Hand shaft
  • 8 Hammer Back
  • $299

451-053 Movement

Front Side Back

  • 75, 85, 94, 114CM
  • 53.2mm Hand shaft
  • 8 Hammer Back
  • $299

451-030 Movement

Front Side Back

  • 66, 94, 114CM
  • 33.2mm Hand shaft
  • 5 Hammer Side
  • $299

451-033 Movement

Front Side Back

  • 94, 114CM
  • 53.2mm Hand shaft
  • 5 Hammer Side
  • $299

Hands for the 451 Series

Clock Hands 451 Serpentine Hands

Most popular choice are these Serpentine hands for the 451 Hermle Clock Movement for either a 8 inch or 10 inch dial diameter. The dial diameter is also called the time track, it is the ring from outside the 9 to outside the 3 . The minute hand has a 2.8mm square mounting hole that is in a round bushing that rotates with in the hand, the hour hand has a 4.5mm round hole.

#CH3

Clock Hands 451 Spade Hands

Not as common on the 451 are these Spade hands. The dial diameter is also called the time track, it is the ring from outside the 9 to outside the 3 . The minute hand has a 2.8mm square mounting hole that is in a round bushing that rotates with in the hand, the hour hand has a 4.5mm round hole.

Item #CH1
Clock Hands 451 Regulator Hands

Never seen these used on the 451, but there are some crazy clock ideas out there so here they are. Regulator style hands that come in 5 and 7 inch dial diameters (very small for 451). The dial diameter is also called the time track, it is the ring from outside the 9 to outside the 3 . The minute hand has a 2.8mm square mounting hole that is in a round bushing that rotates with in the hand, the hour hand has a 4.5mm round hole.

#CH2

Accessories for the 451 Series

Hermle Clock 1161 Suspension Spring 451 Pendulum Suspension Spring

Proper suspension spring for all of the 451 hermle clock movement series. The larger suspension spring is 1 inch long and 7/16 inch wide for the clocks with a 8 1/2 inch or 10 1/2 in bob (round disk at the bottom of the pendulum). The smaller size is for the clocks with a 6 1/2 inch or less pendulum bob. You see if the larger suspension is used with a small bob, it may have trouble running. If the smaller spring is used with the larger bob diameters, the pendulum will wobble and the spring could break also. If ordering a new 451 movement, keep in mind a new movement will come with the suspension already included. It sure is a good idea to have a spare also if you choose to get this and put it on the bottom of the clock case for next time. There will be a next time, there always is when it comes to suspensions, this would make a nice spare instead of searching endlessly in the future for it.

Item #451SUS

1161 Clock Chain 451 Chain

The chain fits the 451 series clock movement. It has 46.5 links in a foot and comes in a 6 foot length. The chain comes in either the shiny polished brass style or the darker antiqued brass style. If ordering a new chain driven 451 movement, keep in mind a new movement will come with the chains already included.

Item #WE4

Clock Parts German Hand Nuts German Hand Nuts

12 Assorted hand nuts for German movements. With this assortment of hand nuts you will get one for your German movement with no problem.

Item #CP9 $10


Clock Moon Dial 451-050 Moon Dial

11 x 15 1/2 phase of the moon dial with Arabic gold time track and raised spandrels. The four dial feet on the back of the Moon Dial mount into the movement itself. Has the silent / chime option at 3 O'clock. This dial fits the 451-050 movement.

Item #MD8 $89

Clock Moon Dial 451 Moon Dial

11 x 15 1/2 phase of the moon dials with a silver time track and raised spandrels. The four dial feet on the back of the dial mount into the movement itself. Has the silent / chime option at 3 O'clock and has Arabic numerals.

Item #MD1 $125

Clock Moon Dial 451-053 Moon Dial

11 x 15 1/2 phase of the moon dial with Arabic gold time track and raised spandrels. The four dial feet on the back of the Moon Dial mount into the movement itself. Has the silent / chime option at 3 O'clock. This dial fits the 451-053 movement.

Item #MD16 $125.

Clock Moon Dial 451-053 Moon Dial

9 7/8 x 13 phase of the Moon Dials with Arabic gold time track and raised spandrels. The four dial feet on the back of the dial mount into the movement itself. Has the silent / chime option at 3 O'clock. This Moon Dials fits the 451-053 movement.

Item #MD6 $99


Clock Weights for 1161 Lyre Pendulum for 451

Polished brass tone lyre pendulum for the hermle 451 clock movement series. On the back of the clock movement will be the CM stamp. This is not the actual length of the pendulum itself, rather this CM represents the pendulum and leader and suspension all in one measurement where the clock will keep time. All that needs to be done is order the cm length as stamped on the movement, and the pendulum will be the proper length. The bob is the round disk at the bottom of the pendulum and should have about 2 inches on each side to swing around.

#Lyre451

Clock wood stick pendulum Wood Stick Pendulum for 451

Wood stick pendulum with polished brass bob for the hermle 451 clock movement series. On the back of the clock movement will be the CM stamp. This is not the actual length of the pendulum itself, rather this CM represents the pendulum and leader and suspension all in one measurement where the clock will keep time. All that needs to be done is order the cm length as stamped on the movement, and the pendulum will be the proper length. The bob is the round disk at the bottom of the pendulum and should have about 2 inches on each side to swing around.

#StPend451

451 Hermle clock movement leader Pendulum Leader for 451

Leader for the 451 hermle clock movement. There is the new style, leader D, that goes on the style movement with the post style crutch sticking out of the back of the movement. Then there is the older style for the type of movement that has the double fork like crutch that the leader would go between. The leader gets wacked by the crutch just slightly each tick / tock and this keeps the pendulum going.

#Leader451 - $14

Clock Chime Block for 1161 451-050 and 053 Chime Block

This is the proper chime block for the 451-050 and 451-053 movements. The chime block's longest rod is 22 inches long measured through the top block. It has 8 rods the rods that run straight down, 4 on one side and 4 on the other. The top block is does not have threaded mounting holes, it would be required to bolt the chimeblock in place with bolts and nuts.

#CB451 - $80


Clock Weights for 1161 Complete Weight for 451

The 451 Series movement weight specifications are as follows. The clock needs 2 @ 4.7LBS and 1 @ 6.6LBS IF the pendulum bob is less than 8 1/2 inches wide. The clock needs 1 @ 4.7LBS and 2 @ 6.6LBS if the pendulum bob is 8 1/2 inches or wider. The bob is the round disk at the bottom of the pendulum. The 451 is a three weight movement and each weight's outer shell is 47mm wide x 272mm long (1 7/8 inch x 10 11/16 inch).

#WE451

Clock Weights for 1161 Weight Parts Only

These are the parts for the polished weight shell for the 451 with out the lead filler. You can get either the complete polished shell or the parts of the shell. The 451 is a three weight movement and each weight's outer shell is 47mm wide x 272mm long. (1 7/8 inch x 10 11/16 inch)

#WE451P

Grandmother Clock Kit 451Kit #208
  • 451-050 85cm
  • Westminster
  • Chain Driven
  • Moon Dial
  • Back 8 Rod Strike
  • Handshaft is 33.2mm
$749$579 View This Clock Kit
Grandmother Clock Movement Kit 451Kit #209
  • 451-050 85cm or 94cm
  • Westminster
  • Chain Driven
  • Moon Dial
  • Back 8 Rod Strike
  • Handshaft is 33.2mm
$812 $629 View This Clock Kit

Dating Hermle clock movements

Prior to 1988, the year was two digits (79 was produced in 1979).
Starting in 1988 the year of was indicated by a letter.

  • A/1988
  • B/1989
  • C/1990
  • D/1991
  • E/1992
  • F/1993
  • G/1994
  • H/1995
  • J/1997
  • K/1998
  • L/1999
  • M/2000
  • N/2001
  • O/2002
  • P/2003
  • Q/2004
  • R/2005
  • S/2006
  • T/2007
  • U/2008
  • V/2009
  • W/2010
  • X/2011
  • Y/2012
  • Z/2013
  • AA/2014

HERMLE MOVEMENT DIRECTORY

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