Citizen’s 4H alarm series - like this example here - is a great balance of a classically-shaped 1960’s mechanical chronograph, ie: not too thin, nor too thick, with a gently curved caseback that allows the watch to sit rather comfortably on the wrist – the caseback snaps into position, as it must be in a specific position to allow the alarm to ring as designed. The place where the pin is, is also visible on the outside.
The dial is a stunning sunburst patterned grey color that shimmers depending on lighting conditions (making it quite a chore to photograph well – its far more stunning in person) – depending on how you move the watch, the dial can appear dark grey to a light, shinny, bright grey. The dial also features small lines every 15 minutes , with raised dial hour indices. A nice vintage touch, dial writing is in ornate cursive script – the 4H on the dial is representative of the four hands on this watch: hour, minute, seconds, and alarm.
But the most outstanding feature on these watches is the mechanical watches? The alarm of course!
This Citizen 4H features two crowns – one for the time at 4 o’clock and a second for the alarm at 2 o’clock; after winding the alarm crown, it is set by pulling the crown to the second position, counterclockwise, and once set, left in the second position (akin to the Seiko Bell Matic). Pressing this crown in while the alarm is ringing will halt it. The alarm works via a small hammer mounted on the movement, which strikes a pin on the inside of the case back.
This Citizen 4H alarm comes with a leather strap, nylon NATO strap, springbar tool, and Pelican travel case.
1965 Citizen 4H Alarm Mechanical
DIAL: Original silver dial; date function at 3 o’clock position works nicely. Original baton hour, minute, second, and alarm hands; alarm hand is shorter with a triangle tip.
CASE: Original 37.5mm (38.5mm with crown) x 44mm stainless steel casem with original caseback. Caselines and lugs are sharp, with no evidence of machine polish.
CRYSTAL: Original domed acrylic crystal, with date cyclops; no scratches or cracks.
BAND: Brown leather strap, with cream-accent stitching – it also comes with a dark blue, white, and orange nylon NATO strap – both with stainless steel hardware.
MOVEMENT: Original Citizen Calibre 3102 (date), 21 jewels beating at 18,000 bph; manufactured in July 1975.
CROWN: Unsigned stainless-steel crowns, both.