Seiko Cal. 4534 - 997

The Seiko 4534-997 represents an important milestone in Seiko's 1978 lineup. Powered by the 4534 caliber with 17j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-d744f7540c5a]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1978

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