Seiko Cal. 7139 - 266

The Seiko 7139-266 represents an important milestone in Seiko's 1987 lineup. Powered by the 7139 caliber with 31j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-3304f8f4a82c]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1987

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