Seiko Cal. 3815 - 777

Seiko 3815-777

The 3815-777 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3815 caliber with 25j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-825ae691a209]

Also known as: Tuna, Pogue

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
15.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
25j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1979

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