Seiko NH71A
Factory specs
- Caliber
- NH71A
- 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, Skeleton
- Equivalent to
- Seiko NH70A
- Same family
- Seiko 4R36, Seiko NH35A, Seiko NH36A, Seiko NH37A, Seiko NH38A, Seiko NH39A, Seiko NH70A, Seiko NH72A
Gilt (gold-plated) version of the skeletonised NH70A (data/movements/seiko-nh70.yaml); the two differ only in plating. TMI spec sheet (rev. 16.11.2022): 12 lignes, Ø27.40mm, 5.32mm high, "Three Hands (skeleton)", gold plating, 24 jewels, 21,600 vph, duration "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 mechanism (hacking), antimagnetic ≥4,800 A/m, "non-corresponding with diver's watch" casing. TMI product page: Côtes de Genève decorated rotor, gilt finish, country of origin "Japan or Malaysia" (Caliber Corner says it was made only in Japan when it wrote its listing; TMI's current page is recorded). Built on the NH35 (NH3) framework per Caliber Corner, hence the Seiko NH3x family.
Watches with the Seiko NH71A
| Watch | Price from | Movement | Dia. mm | Thick mm | Crystal | Micro-adjust |
|---|---|---|---|---|---|---|
 Islander Baiting Hollow Gilded Skeleton |
$349 | Seiko NH71A | 42 | 14.3 | Sapphire | — |