Seiko Cal. 3816 - 628

The Seiko 3816-628 represents an important milestone in Seiko's 1972 lineup. It features a Black dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-405aae8647fe]

Also known as: Tuna, World Timer

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1972

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