Seiko Cal. 7139 - 781

The Seiko 7139-781 represents an important milestone in Seiko's 1998 lineup. Powered by the 7139 caliber with 17j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-1d737b081693]

Also known as: Panda, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1998

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