Seiko Cal. 7040 - 637

Seiko 7040-637

The 7040-637 is a sought-after Kinetic piece from Seiko's golden era. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-a689e6091fcc]

Also known as: Sumo

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
9.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
150m
Dial Color
Green
Jewels
17j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1992

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