Seiko Cal. 4540 - 149

The 4540-149 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-36bd0842dc7f]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1975

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