Seiko Cal. 6231 - 778

The 6231-778 is a sought-after Solar piece from Seiko's golden era. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-6dce806fbbbc]

Also known as: Tuna, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1980

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