Seiko Cal. 6687 - 518

Seiko 6687-518

This Automatic model from 1973 features a 40mm Titanium case. Powered by the 6687 caliber with 29j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-473b3dcaaf0d]

Also known as: Arnie, Flighty

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
40mm
Case Thickness
12.5mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Navy
Jewels
29j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1973

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