Seiko Cal. 6690 - 398

Seiko 6690-398

This Quartz model from 1968 features a 37mm Titanium case. Powered by the 6690 caliber with 34j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-91d6807e8bf6]

Also known as: Bellmatic, Navigator

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
37mm
Case Thickness
12.2mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
50m
Dial Color
Silver
Jewels
34j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1968

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