Seiko Cal. 4540 - 342

The 4540-342 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-7fc11769b7bb]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1997

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