Seiko Cal. 5634 - 930

The 5634-930 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5634 caliber with 34j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-4d74ba7dcbfb]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1988

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