Seiko Cal. 6635 - 336

The 6635-336 is a sought-after Solar piece from Seiko's golden era. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-11fb433baf4a]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1978

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