Seiko Cal. 5646 - 442

The Seiko 5646-442 represents an important milestone in Seiko's 1982 lineup. It features a Green dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-79d44779d10f]

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1982

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