Seiko Cal. 6645 - 912

The Seiko 6645-912 represents an important milestone in Seiko's 1974 lineup. Powered by the 6645 caliber with 18j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-96e484e39ffa]

Also known as: Sea Horse, Arnie

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1974

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