Seiko Cal. 6610 - 770

The Seiko 6610-770 represents an important milestone in Seiko's 1988 lineup. Powered by the 6610 caliber with 23j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-ba9bf69d9ed1]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1988

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