Seiko Cal. 5633 - 388

This Automatic model from 1976 features a 34mm PVD Black case. Powered by the 5633 caliber with 27j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-d308314f37cb]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1976

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