Seiko Cal. 5640 - 764

This Automatic model from 1997 features a 41mm Gold-Plated case. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-8573ea0ecad8]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1997

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