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Seiko Helmet Chronograph Automatic 6139-7100 – photo 1
Seiko Helmet Chronograph Automatic 6139-7100 – photo 2
Seiko Helmet Chronograph Automatic 6139-7100 – photo 3
Seiko Helmet Chronograph Automatic 6139-7100 – photo 4
Seiko Helmet Chronograph Automatic 6139-7100 – photo 5
Seiko Helmet Chronograph Automatic 6139-7100 – photo 6
Seiko Helmet Chronograph Automatic 6139-7100 – photo 7
Seiko Helmet Chronograph Automatic 6139-7100 – photo 8
Seiko Helmet Chronograph Automatic 6139-7100 – photo 9
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Seiko

Helmet Chronograph Automatic

Ref. 6139-7100 · Automatic · Japan · 41 mm
Case 41 mm
MovementAutomatic
Made inJapan
$599
One piece only. When it sells, it's gone.

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  • Checked for originality and timed before listing
  • Ships worldwide with FedEx or UPS, usually 8–15 days
  • 100% positive feedback from 700+ eBay ratings

Will it fit your wrist?

Case 41 mm · Lug to lug 49 mm.

Brand
Seiko
Reference
6139-7100
Movement
Automatic
Case size
41 mm
Lug to lug
49 mm
Lug width
20 mm
Origin
Japan
Style
Chronograph
From the seller

Beautifully preserved vintage condition. The case shows only the lightest signs of gentle wear consistent with age.

Shipping & import duties
Ships worldwide with FedEx or UPS, usually within 8–15 days. Import charges, where they apply, are paid by the buyer. Watches are not tested for water resistance. Shipping details
Returns
Returns policy awaiting confirmation. Please ask us before buying.
How every watch is checked
Each watch is checked for an original dial, hands, crown, case and movement, and its timekeeping is tested before it’s listed. Mechanical watches can vary by a minute or two a day, which is normal for vintage.