Seiko Cal. 6389 - 635

Seiko 6389-635

The 6389-635 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-cf8a41abff2f]

Also known as: Tuna, Helmet

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
9.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Black
Jewels
28j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1999

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