Seiko Cal. 4487 - 903

This Hand-Winding model from 1979 features a 37mm Two-Tone case. Powered by the 4487 caliber with 31j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-eb34ba3fbd01]

Also known as: Panda, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1979

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