Seiko Cal. 6140 - 304

The 6140-304 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6140 caliber with 28j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-fdb29beed488]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1975

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