Seiko Cal. 6688 - 734

Seiko 6688-734

This Solar model from 1972 features a 35mm Two-Tone case. Powered by the 6688 caliber with 26j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-650975bd1f1c]

Also known as: Bellmatic

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
35mm
Case Thickness
13.2mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
50m
Dial Color
Burgundy
Jewels
26j
Frequency
28,800 bph
Power Reserve
65 hours
Year
1972

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