Seiko Cal. 6631 - 751

This Quartz model from 1994 features a 46mm PVD Black case. Powered by the 6631 caliber with 34j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-949aefb6d7bf]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1994

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