Seiko Cal. 5637 - 788

The Seiko 5637-788 represents an important milestone in Seiko's 1981 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-24293e7d18c4]

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1981

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