Seiko Cal. 6615 - 642

The Seiko 6615-642 represents an important milestone in Seiko's 1977 lineup. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-94eed1fb74f6]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1977

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