Seiko Cal. 6610 - 816

The Seiko 6610-816 represents an important milestone in Seiko's 1977 lineup. With its 18mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-29a3f950ca2a]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1977

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