Seiko Cal. 3816 - 554

The Seiko 3816-554 represents an important milestone in Seiko's 1968 lineup. With its 20mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-a953b4c3c1b8]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1968

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