Seiko Cal. 4528 - 551

This Spring Drive model from 1995 features a 43mm PVD Black case. Powered by the 4528 caliber with 23j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-bc64311ac2e3]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1995

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