Seiko Cal. 6157 - 251

This Automatic model from 1973 features a 40mm PVD Black case. It features a Green dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-a1e3238483e4]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1973

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