Seiko Cal. 6610 - 647

The Seiko 6610-647 represents an important milestone in Seiko's 1986 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-21f8994a5aab]

Also known as: UFO, World Timer

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1986

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