Seiko Cal. 3857 - 724

The Seiko 3857-724 represents an important milestone in Seiko's 1976 lineup. Powered by the 3857 caliber with 29j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-c0c25a2c3054]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1976

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