Seiko Cal. 6185 - 257

The 6185-257 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6185 caliber with 33j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-6122cc64cb06]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1967

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