Seiko Cal. 5637 - 264

This Spring Drive model from 1999 features a 43mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-a1b48e4b768f]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1999

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