Seiko Cal. 6181 - 139

The 6181-139 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6181 caliber with 20j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-3fffc99f2b7f]

Also known as: Panda, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1993

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