Seiko Cal. 3816 - 694

Seiko 3816-694

The 3816-694 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3816 caliber with 19j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-88ed9d3bac24]

Also known as: Helmet, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
11.7mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
30m
Dial Color
Green
Jewels
19j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1994

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