Seiko Cal. 6613 - 730

Seiko 6613-730

This Spring Drive model from 1978 features a 34mm PVD Black case. Powered by the 6613 caliber with 35j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-ef8a7b48fcaa]

Also known as: World Timer

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
34mm
Case Thickness
9.2mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
White
Jewels
35j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1978

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