Seiko Cal. 7164 - 437

The Seiko 7164-437 represents an important milestone in Seiko's 1987 lineup. Powered by the 7164 caliber with 27j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-a474b5e354b0]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1987

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