Seiko Cal. 6655 - 233

The Seiko 6655-233 represents an important milestone in Seiko's 1971 lineup. It features a Green dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-979068d8063f]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1971

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