Seiko Cal. 5635 - 490

This Spring Drive model from 1978 features a 37mm Titanium case. It features a Navy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-bd3fb87246c5]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1978

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