Seiko Cal. 6240 - 657

Seiko 6240-657

The 6240-657 is a sought-after Kinetic piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-5ae54b44c455]

Also known as: Sumo, Arnie

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
9.4mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Green
Jewels
29j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1965

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