Seiko Cal. 5634 - 240

The Seiko 5634-240 represents an important milestone in Seiko's 1990 lineup. It features a Green dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-1fec78804fde]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1990

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