Seiko Cal. 6637 - 209

Seiko 6637-209

The 6637-209 is a sought-after Kinetic piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-8d951a91a70b]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
38mm
Case Thickness
13.8mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
50m
Dial Color
White
Jewels
31j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1987

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