Seiko Cal. 4486 - 231

The Seiko 4486-231 represents an important milestone in Seiko's 1977 lineup. Powered by the 4486 caliber with 26j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-e95f67194dcd]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

26j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1977

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