Seiko Cal. 6140 - 340

Seiko 6140-340

The 6140-340 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6140 caliber with 19j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-88a910f7fa4a]

Also known as: UFO, Silverwave

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
12.1mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Navy
Jewels
19j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1977

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