Seiko Cal. 3816 - 840

The Seiko 3816-840 represents an important milestone in Seiko's 1980 lineup. It features a White dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-db40e1193057]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1980

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