Seiko Cal. 3894 - 377

Seiko 3894-377

The 3894-377 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3894 caliber with 32j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-c23972e23b9a]

Also known as: Sumo

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
14.8mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Navy
Jewels
32j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1977

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