Seiko Cal. 3889 - 648

Seiko 3889-648

The 3889-648 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-fd52aa4ba4d4]

Also known as: Sumo, Flighty

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
8.1mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
Black
Jewels
18j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1972

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