Seiko Cal. 6140 - 352

Seiko 6140-352

The 6140-352 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6140 caliber with 23j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-10a1ad7b25f2]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
9.8mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1973

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