Seiko Cal. 6663 - 139

This Solar model from 1976 features a 42mm Titanium case. It features a Green dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-b80188c05c28]

Also known as: World Timer, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1976

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