Seiko Cal. 5635 - 633

This Quartz model from 1977 features a 42mm PVD Black case. Powered by the 5635 caliber with 21j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-4ae81e6922f6]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1977

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