Seiko Cal. 6636 - 385

Seiko 6636-385

The 6636-385 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-07ead211a9f6]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
41mm
Case Thickness
14.1mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
190m
Dial Color
White
Jewels
27j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1993

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