Seiko Cal. 7140 - 715

The 7140-715 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7140 caliber with 31j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-b6e2510f4d6a]

Also known as: Turtle, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1988

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