Seiko Cal. 7156 - 406

The 7156-406 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7156 caliber with 34j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-4da81226e40c]

Also known as: Turtle, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1971

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