Seiko Cal. 3816 - 742

Seiko 3816-742

The 3816-742 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3816 caliber with 30j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-c72da616f5bf]

Also known as: Tuna, Flighty

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
38mm
Case Thickness
9.0mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
160m
Dial Color
White
Jewels
30j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1971

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