Seiko Watch ref. SKX643

The Seiko SKX643 is a mechanical automatic watch with movement-case reference 7S26-0310. It houses the 7S26 caliber with 21 jewels, running at 21600 bph with an accuracy of +45/-35 seconds per day. It has a 41 hours power reserve, no hand-winding and no stop seconds hand function.

Ref.	SKX643 Depending on the region, bracelet model and other features you may find this watch reference written as SKX643J, SKX643J1, SKX643J2, SKX643K, SKX643K1, SKX643K2, SKX643P, SKX643P1, SKX643P2, etc.
Case-movement ref.	7S26-0310
Case-Dial code	031-190
Caliber	7S26
Type	mechanical automatic
Jewels	21
Power reserve	41 hours
Hand-winding	no
Stop seconds hand	no
Crystal	hardlex
Strap/Bracelet ref.	49H2AB

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