Seiko Cal. 3831 - 171

Seiko 3831-171

The 3831-171 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3831 caliber with 19j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-18803a1180f0]

Also known as: Sumo, Goldfeather

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
8.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Navy
Jewels
19j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1989

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seikata-wm-18803a1180f0