Seiko Cal. 4540 - 439

The Seiko 4540-439 represents an important milestone in Seiko's 1989 lineup. Powered by the 4540 caliber with 31j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-45c230845bf0]

Also known as: Panda

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1989

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