Seiko Cal. 3873 - 561

Seiko 3873-561

The 3873-561 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3873 caliber with 34j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-d3622c4c82ad]

Also known as: Navigator

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
13.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
110m
Dial Color
Burgundy
Jewels
34j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1975

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