Seiko Cal. 4436 - 481

This Hand-Winding model from 1988 features a 44mm Titanium case. Powered by the 4436 caliber with 35j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-4dfa10a0d164]

Also known as: Helmet, Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1988

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