Seiko Cal. 3860 - 840

Seiko 3860-840

The 3860-840 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-56c584f21e36]

Also known as: Navigator, Flighty

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
36mm
Case Thickness
15.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Navy
Jewels
31j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1971

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