Seiko Cal. 6648 - 340

Seiko 6648-340

The 6648-340 is a sought-after Kinetic piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-f6a9f5b6c4c3]

Also known as: Monster, Sumo

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
40mm
Case Thickness
8.1mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Black
Jewels
30j
Frequency
36,000 bph
Power Reserve
38 hours
Year
1979

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