Calibre 520⚙️ 15 jewel ⚙️ 18,800 A/h ⚙️ 1941 The Calibre 520 was the first movement produced by Eterna for men’s wristwatches. It beats at 18,000 BPH and had a power reserve of 42 hours. This service watch is still beating accurately even through all its time out in the
Category: Nudes
Bulova produced two variations of the 10BA both modified from an ETA 900. There was a center second version from an ETA 926 which was renamed in 1952 to the more suitable reference 10BAC. In most (but not all) Bulova movement references a C denotes a center second – such
Accutron 2185 13 jewel 360 Hz 1970 The Accutron 2185 movement was the last code in the 218 line up. This movement featured the ability to set a second time zone and was found in either the Railroad or Astronaut models. With the Railroad models the extra hour hand was suggested to be
Accutron 2210 ⚡ 15 jewel ⚡ 440 Hz ⚡ 1974 With a lot of technological advancements it’s all about making it smaller. In this instance the Accuton was developed to take up less space – the tuning fork wraps around the battery compartment and individual components have been reduced in size and changed position to
11ODC ⚙️ 17 jewel ⚙️ 18,800 A/h ⚙️ 1967 Simple modified ETA 1686 centre sweep second movement. Note the M7 stamp denoting the year 1967. Full article on the watch here.
11BKACB ⚙️ 17 jewel ⚙️ 21,600 A/h ⚙️ 1968 This is inside a super clean Bulova Sky Star from 1969. The movement is a peach. Like it? Only used in the Bulova SkyStar for one year in 1969.
2423.10 ⚙️ 0 jewel ⚙️ 3,600 A/h ⚙️ 1977 This early quartz movement featured a super neat function called “Accuset”. Because it had a little drift in time keeping it was possible to hit a button on the side of the case when you found a reliable time source that
Bulova 14EB ⚙️ 17 jewel ⚙️ 18,000 A/h ⚙️ 1970 This Bulova 14EB is a modified Valjoux 7733 which is a chronograph movement featuring two sub dials of running seconds and minutes passed. Bulova used this movement from 1969 to 1973. The watch here is the Deep Sea Chronograph “Surf