Seiko Cal. 6641 - 528

The Seiko 6641-528 represents an important milestone in Seiko's 1985 lineup. Powered by the 6641 caliber with 18j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-492681f67678]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1985

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