Seiko Cal. 4445 - 520

This Spring Drive model from 1984 features a 37mm Titanium case. Powered by the 4445 caliber with 35j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-7844e99b3cff]

Also known as: Helmet, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1984

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