Seiko Cal. 5633 - 923

This Quartz model from 1967 features a 40mm Stainless Steel case. Powered by the 5633 caliber with 21j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-aaee58ee2bee]

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1967

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