SEIKO INSTRUMENTS

NH34A

Automatic · GMT · Date

Country of origin

Japan

SEIKO INSTRUMENTS NH34A, dial side — DIAL SIDE

SEIKO INSTRUMENTS NH34A, case-back side — CASE-BACK SIDE

FREQUENCY: 21,600vph · 3 Hz
POWER RESERVE: 41hours
JEWELS: 24
DIAMETER: 27.40mm

Feature check

Automatic winding — yes
Manual winding — yes
Hacking seconds — yes
Date — yes
Day — no
Small seconds — no
Chronograph — no
Column wheel — no
GMT / second time zone — yes
Moon phase — no
Perpetual calendar — no
Quartz regulated — no

About the NH34A

The NH35 base with a GMT hand. The NH34A, counterpart to Seiko’s 4R34, adds an independently set 24-hour hand for reading a second time zone. It keeps the family’s 3 Hz beat, hacking seconds and hand-winding. It is made by Seiko Instruments’ TMI division.

Independently set 24-hour GMT hand
Counterpart to the Seiko 4R34
Hacking seconds and hand-winding

Manufacturer Seiko Instruments Inc. (TMI)

Specifications

TYPE: Automatic GMT
CALIBRE SIZE: 12 lignes · Ø 27.40 mm
HEIGHT: 5.32 mm
JEWELS: 24
FREQUENCY: 21,600 vph (3 Hz)
POWER RESERVE: 41 hours
FUNCTIONS: Hours, minutes, centre seconds, 24-hr GMT, date
DATE: Quickset, at 3 o’clock
HACKING SECONDS: Yes
HAND-WINDING: Yes
ACCURACY: −20 to +40 s/day (maker’s rating)
COUNTRY OF ORIGIN: Japan