Seiko Cal. 6635 - 371

This Spring Drive model from 1994 features a 36mm Hardlex-Coated Steel case. It features a Navy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-5c6c8a1f464b]

Also known as: Navigator, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1994

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