Seiko Cal. 3813 - 271

Seiko 3813-271

Released in 1992, the Cal. 3813 with design code 271 was part of Seiko's domestic market collection. Powered by the 3813 caliber with 36j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-d131a9b116d6]

Also known as: Sumo, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
38mm
Case Thickness
11.1mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
170m
Dial Color
Green
Jewels
36j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1992

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seikata-wm-d131a9b116d6