Seiko Cal. 6643 - 782

Seiko 6643-782

The 6643-782 is a sought-after Kinetic piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-0f47f58d9c3f]

Also known as: Sumo

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
13.0mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
70m
Dial Color
Navy
Jewels
23j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1977

Related Models

seikata-wm-0f47f58d9c3f