Seiko Cal. 6665 - 720

Seiko 6665-720

This Quartz model from 1974 features a 38mm Stainless Steel case. Powered by the 6665 caliber with 24j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-5158ed361cea]

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
13.7mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Burgundy
Jewels
24j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1974

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