Seiko Cal. 6642 - 848

Seiko 6642-848

The 6642-848 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6642 caliber with 22j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-aee2ea3f288e]

Also known as: Turtle, Helmet

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
8.0mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
White
Jewels
22j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1965

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