Seiko Cal. 6645 - 210

The Seiko 6645-210 represents an important milestone in Seiko's 1981 lineup. With its 20mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-9e6a65d71bf0]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1981

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