Seiko Cal. 4425 - 736

This Quartz model from 1966 features a 44mm PVD Black case. Powered by the 4425 caliber with 21j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-302fa0415070]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1966

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