Seiko Cal. 6660 - 355

The Seiko 6660-355 represents an important milestone in Seiko's 1970 lineup. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-c56c29b8bfd4]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

43mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1970

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