Seiko Cal. 6318 - 641

This Quartz model from 1993 features a 39mm Two-Tone case. Powered by the 6318 caliber with 21j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-8b1f1d66b38e]

Also known as: Tuna, Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1993

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