Seiko Cal. 6613 - 537

Seiko 6613-537

The Seiko 6613-537 represents an important milestone in Seiko's 1980 lineup. Powered by the 6613 caliber with 21j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-086aed16cf36]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement
Solar
Case Material
Titanium
Case Width
40mm
Case Thickness
11.9mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
160m
Dial Color
Green
Jewels
21j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1980

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