Seiko Cal. 6691 - 312

This Solar model from 1977 features a 43mm Titanium case. It features a Burgundy dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-dc57ec696c7c]

Also known as: Tuna, Bullhead

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1977

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