Seiko Cal. 0757 - 520

The Seiko 0757-520 represents an important milestone in Seiko's 1976 lineup. Powered by the 0757 caliber with 25j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-c63627fa80f3]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1976

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