Seiko NH34A
Factory specs
- Caliber
- NH34A
- Made in
- Japan or Malaysia
- Frequency
- 21,600 bph (3 Hz)
- Power reserve
- 41 h
- Jewels
- 24
- Hacking
- Yes
- Hand winding
- Yes
- Accuracy
- -20 / +40 s/day
- Diameter
- 27.4 mm
- Height
- 5.32 mm
- Functions
- Hours, Minutes, Seconds, Date, GMT
NH35 base with a centre 24-hour hand ("24 hour hand or second time zone"). TMI spec sheet: 12 lignes, Ø27.40mm (Ø29.36mm with the dial holding spacer), 5.32mm high, 24 jewels, 21,600 vph, power reserve "more than 41 hours", accuracy -20 to +40 s/day (23 ±2 °C), manual winding, ball-bearing automatic winding in both directions, second-hand stop (hacking), quick date correction. Country of origin "Japan or Malaysia". TMI's operation manual sets the 24h hand on its own at the crown's first position (turn right; turn left for the date), i.e. an "office"/"caller" GMT rather than a "flyer" with a jumping local hour hand. Trade version of Seiko's 4R34 (not in this database).
