Seiko Cal. 3870 - 371

Seiko 3870-371

The Seiko 3870-371 represents an important milestone in Seiko's 1997 lineup. Powered by the 3870 caliber with 31j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-c50d7d20d2df]

Also known as: Arnie

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
13.1mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
120m
Dial Color
Silver
Jewels
31j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1997

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