Seiko Cal. 4435 - 642

The 4435-642 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4435 caliber with 27j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-7c89dcdfd9a0]

Also known as: Samurai, Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1967

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