Seiko Cal. 3813 - 856

Seiko 3813-856

The 3813-856 is a sought-after Solar piece from Seiko's golden era. Powered by the 3813 caliber with 32j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-d0a662bd811c]

Also known as: Helmet, UFO

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
11.0mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Navy
Jewels
32j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1985

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