Seiko Cal. 5623 - 641

Seiko 5623-641

The Seiko 5623-641 represents an important milestone in Seiko's 1996 lineup. Powered by the 5623 caliber with 35j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-2ad05db51cce]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
10.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
130m
Dial Color
Navy
Jewels
35j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1996

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