Seiko Cal. 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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