Seiko Cal. 3828 - 503

The Seiko 3828-503 represents an important milestone in Seiko's 1970 lineup. Powered by the 3828 caliber with 31j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-388a3d4b523d]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1970

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