Seiko Cal. 4540 - 547

The 4540-547 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4540 caliber with 27j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-cc1ca124135b]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1975

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