Seiko Cal. 4540 - 672

Released in 1996, the Cal. 4540 with design code 672 was part of Seiko's domestic market collection. Powered by the 4540 caliber with 35j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-cd50406da32c]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1996

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