Seiko Cal. 6645 - 310

This Spring Drive model from 1998 features a 35mm Stainless Steel case. With its 18mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-1ae9cd7b76bd]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1998

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