Seiko Cal. 6648 - 538

Seiko 6648-538

The 6648-538 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-8bdb0dc3e415]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
38mm
Case Thickness
12.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Silver
Jewels
31j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1988

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seikata-wm-8bdb0dc3e415