Seiko Cal. 5638 - 377

This Automatic model from 1970 features a 42mm Two-Tone case. It features a Burgundy dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-fac3a12c0775]

Also known as: Golden Tuna, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1970

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