Seiko Cal. 6388 - 443

This Solar model from 1977 features a 41mm Titanium case. It features a Green dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-58aca86b318e]

Also known as: Tuna, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1977

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