Seiko Cal. 5635 - 979

This Spring Drive model from 1977 features a 34mm Titanium case. It features a White dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-98362eed912b]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1977

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