Seiko Cal. 3857 - 488

Released in 1979, the Cal. 3857 with design code 488 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-4da0add3955e]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1979

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