Seiko Cal. 7156 - 536

The Seiko 7156-536 represents an important milestone in Seiko's 1991 lineup. Powered by the 7156 caliber with 25j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-ba55a5553260]

Also known as: Pogue, Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1991

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