Seiko Cal. 5645 - 142

The Seiko 5645-142 represents an important milestone in Seiko's 1972 lineup. Powered by the 5645 caliber with 17j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-1bba7cb72c5f]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1972

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