Seiko Cal. 3899 - 707

Seiko 3899-707

The 3899-707 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-36031111acbe]

Also known as: Sportsmatic, Emperor

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
12.1mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Black
Jewels
18j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1970

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seikata-wm-36031111acbe