Seiko Cal. 3813 - 372

Seiko 3813-372

The 3813-372 is a sought-after Solar piece from Seiko's golden era. Powered by the 3813 caliber with 29j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-89ea5a58ebd4]

Also known as: Bullhead, Baby Tuna

Specifications

Movement
Solar
Case Material
Titanium
Case Width
38mm
Case Thickness
14.8mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Cream
Jewels
29j
Frequency
21,600 bph
Power Reserve
44 hours
Year
1978

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