Seiko Cal. 6311 - 738

This Automatic model from 1991 features a 45mm PVD Black case. It features a Green dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-cbc2279c8d19]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1991

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