Seiko Cal. 6631 - 724

This Quartz model from 1997 features a 46mm Stainless Steel case. Powered by the 6631 caliber with 32j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-3812c03b9194]

Also known as: Helmet, UFO

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1997

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