Seiko Cal. 6331 - 397

This Automatic model from 1996 features a 45mm Hardlex-Coated Steel case. Powered by the 6331 caliber with 20j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-d71dc153c316]

Also known as: Bullhead, Silverwave

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1996

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