Seiko Cal. 4425 - 815

This Hand-Winding model from 1970 features a 45mm Gold-Plated case. Powered by the 4425 caliber with 18j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-52b7b896cf95]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1970

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