Seiko Cal. 6140 - 388

Released in 1975, the Cal. 6140 with design code 388 was part of Seiko's domestic market collection. Powered by the 6140 caliber with 23j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-0829ea3bdb99]

Also known as: UFO, Arnie

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1975

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