Seiko Cal. 7131 - 307

This Automatic model from 1974 features a 42mm Two-Tone case. It features a White dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-d5ccd6a36ad3]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1974

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