Seiko Cal. 3816 - 504

This Spring Drive model from 1968 features a 35mm Stainless Steel case. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-466747437389]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1968

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