Seiko Cal. 4540 - 442

The 4540-442 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4540 caliber with 26j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-4a399404e176]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1992

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