Seiko Cal. 5637 - 799

Released in 1968, the Cal. 5637 with design code 799 was part of Seiko's domestic market collection. It features a Cream dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-68a5d6b3a158]

Also known as: Sumo, Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1968

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