Seiko Cal. 6615 - 678

This Automatic model from 1972 features a 41mm Two-Tone case. With its 19mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-a13a65c2e33a]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1972

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