Seiko Cal. 6616 - 998

Seiko 6616-998

This Automatic model from 1970 features a 38mm Stainless Steel case. Powered by the 6616 caliber with 22j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-954d9c19c5fb]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
11.8mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
150m
Dial Color
Cream
Jewels
22j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1970

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