Seiko Cal. 4521 - 540

Released in 1985, the Cal. 4521 with design code 540 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-d987cb7f4104]

Also known as: Bullhead, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1985

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