Seiko Cal. 6617 - 138

The 6617-138 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6617 caliber with 26j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-8f4efeb5bdbf]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1986

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