Seiko Cal. 6628 - 645

This Spring Drive model from 1997 features a 46mm Stainless Steel case. Powered by the 6628 caliber with 18j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-71c3f8880b34]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1997

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