Seiko Cal. 4561 - 564

This Quartz model from 1966 features a 42mm Hardlex-Coated Steel case. Powered by the 4561 caliber with 29j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-a97e6eaeb7ce]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1966

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