Seiko Cal. 4437 - 401

The 4437-401 is a sought-after Solar piece from Seiko's golden era. Powered by the 4437 caliber with 19j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-2e3ce26bd461]

Also known as: Silverwave, Navigator

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1989

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