Seiko Cal. 4528 - 912

The Seiko 4528-912 represents an important milestone in Seiko's 1972 lineup. Powered by the 4528 caliber with 31j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-2ef177a419da]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1972

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