Seiko Cal. 3887 - 937

Seiko 3887-937

The 3887-937 is a sought-after Solar piece from Seiko's golden era. Powered by the 3887 caliber with 33j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-56b4c855da53]

Also known as: Shogun, Helmet

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
9.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Navy
Jewels
33j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1985

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