Seiko Cal. 5645 - 287

The 5645-287 is a sought-after Solar piece from Seiko's golden era. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-a61cc4bc6450]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1989

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