Seiko Cal. 6645 - 127

The Seiko 6645-127 represents an important milestone in Seiko's 1970 lineup. Powered by the 6645 caliber with 18j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-6942703ee8f4]

Also known as: Sportsmatic, Crown

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1970

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