Seiko Cal. 5637 - 588

The Seiko 5637-588 represents an important milestone in Seiko's 1992 lineup. It features a Navy dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-4b0621c734a5]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1992

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