Seiko Cal. 5687 - 390

Seiko 5687-390

This Quartz model from 1966 features a 40mm Hardlex-Coated Steel case. Powered by the 5687 caliber with 34j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-a193df2f4c98]

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
9.7mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Burgundy
Jewels
34j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1966

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