Seiko Cal. 6655 - 290

The Seiko 6655-290 represents an important milestone in Seiko's 1968 lineup. It features a Black dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-b8f8317f21c4]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1968

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