Seiko Cal. 6271 - 557

This Automatic model from 1974 features a 45mm PVD Black case. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-31fcb713c569]

Also known as: Monster, Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1974

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