Seiko Cal. 5635 - 188

The Seiko 5635-188 represents an important milestone in Seiko's 1981 lineup. It features a Silver dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-8bf7923ed646]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1981

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