Seiko Cal. 6645 - 609

This Spring Drive model from 1992 features a 40mm Stainless Steel case. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-0cb5e88a9d9b]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1992

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