Seiko Cal. 4570 - 671

This Spring Drive model from 1997 features a 37mm PVD Black case. Powered by the 4570 caliber with 24j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-a7ac55e71d3f]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1997

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