Seiko Cal. 6140 - 189

The 6140-189 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6140 caliber with 36j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-2ac634a3ae42]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1969

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