Seiko Cal. 4545 - 684

This Spring Drive model from 1969 features a 37mm Two-Tone case. Powered by the 4545 caliber with 34j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-2599f6fe3916]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1969

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