Seiko Cal. 4540 - 428

The 4540-428 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4540 caliber with 25j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-05d098bb4be8]

Also known as: Shogun

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1980

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