Seiko Cal. 6641 - 173

The Seiko 6641-173 represents an important milestone in Seiko's 1992 lineup. Powered by the 6641 caliber with 23j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-da6f5e3a070e]

Also known as: Bullhead, World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1992

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