Seiko Cal. 4578 - 924

This Hand-Winding model from 1972 features a 45mm Titanium case. Powered by the 4578 caliber with 31j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-09c57047e627]

Also known as: Crown, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1972

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