Seiko Cal. 4540 - 223

Released in 1985, the Cal. 4540 with design code 223 was part of Seiko's domestic market collection. Powered by the 4540 caliber with 34j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-dc5db7c976a1]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1985

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