Seiko Cal. 6620 - 537

Seiko 6620-537

This Automatic model from 1974 features a 41mm PVD Black case. Powered by the 6620 caliber with 32j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-d30de3849d79]

Also known as: Sumo, Arnie

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
41mm
Case Thickness
10.1mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
30m
Dial Color
White
Jewels
32j
Frequency
36,000 bph
Power Reserve
38 hours
Year
1974

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seikata-wm-d30de3849d79