Seiko Cal. 3870 - 320

Seiko 3870-320

The 3870-320 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3870 caliber with 26j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-cb4726ba684c]

Also known as: Silverwave

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
39mm
Case Thickness
12.2mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
100m
Dial Color
Navy
Jewels
26j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1982

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seikata-wm-cb4726ba684c