Seiko Cal. 6331 - 544

This Automatic model from 1988 features a 39mm Two-Tone case. Powered by the 6331 caliber with 24j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-e4aa744836ba]

Also known as: Monster, Silverwave

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1988

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