Seiko Cal. 4486 - 820

Released in 1970, the Cal. 4486 with design code 820 was part of Seiko's domestic market collection. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-c70fe8fdcf41]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1970

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