Seiko Cal. 4540 - 855

Released in 1981, the Cal. 4540 with design code 855 was part of Seiko's domestic market collection. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-ab079bbfdb1a]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1981

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