Seiko Cal. 5658 - 241

The Seiko 5658-241 represents an important milestone in Seiko's 1975 lineup. Powered by the 5658 caliber with 21j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-53394b51345c]

Also known as: Monster, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1975

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