Seiko Cal. 4487 - 421

The Seiko 4487-421 represents an important milestone in Seiko's 1997 lineup. Powered by the 4487 caliber with 26j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-a3ed03197007]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1997

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