Seiko Cal. 6635 - 163

This Solar model from 1998 features a 40mm Stainless Steel case. Powered by the 6635 caliber with 20j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-33498334ca1c]

Also known as: Monster, Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1998

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