Seiko Cal. 4533 - 657

The Seiko 4533-657 represents an important milestone in Seiko's 1991 lineup. Powered by the 4533 caliber with 35j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-c3bdf1f6c93a]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

35j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1991

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