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The record

Ref. D39306-81

01 Dealer’s notes

THE ORIENT JUPITER SWIMMER 100 — AN UNEXPECTED JAPANESE CLASSIC

The Orient Jupiter Swimmer 100 is a wonderfully unconventional take on the everyday sports watch. Dating to approximately 1990, this Japanese-made quartz model combines the practicality of a water-resistant timepiece with a surprisingly expressive design. The Jupiter name first appeared in Orient's lineup during the 1950s, while the Swimmer family carries a heritage of water-resistant watches stretching back to the 1960s. This particular reference brings those two traditions together in a watch that feels equally at home as a casual sports piece or an understated dress watch.

The dial is undoubtedly the star of the show. Set against a soft, off-white background, oversized black Arabic numerals feature an unusual, almost handwritten italic typeface. Their exaggerated curves and playful proportions give the watch a personality rarely found in conventional quartz sports watches. Small luminous hour markers surround the dial, while slender hands with luminous inserts maintain excellent legibility. At three o'clock, a framed day-date window houses a bilingual English and Japanese kanji day wheel, allowing the wearer to display the weekday in either language. It's a particularly charming detail that reinforces the watch's Japanese origins.

Surrounding the dial is an angular, all-stainless-steel case with sharply defined shoulders and a polished circular bezel. The contrast between its geometric architecture and the soft, flowing numerals creates much of the watch's visual appeal. A stainless steel bracelet continues the clean, understated aesthetic, giving the piece a cohesive appearance on the wrist. Turn the watch over and you'll find one of its most charming details: an engraved skin-diving emblem, a reminder of its original sporting intentions and 100-meter water-resistance rating.

Powered by a Japanese quartz movement, the Jupiter Swimmer 100 represents a period when Japanese watchmakers were finding increasingly creative ways to combine dependable technology with distinctive design. What makes this example particularly appealing is its refusal to follow the traditional visual language of either a dress watch or a diver. It borrows elements from both, resulting in something entirely its own. With its whimsical typography, sculpted steel case, and subtle sporting heritage, this is a vintage Orient that rewards a closer look.

Three points to note.

  • Circa 1990 Japanese-made quartz watch from Orient's Jupiter Swimmer collection.

  • Distinctive italic Arabic-numeral dial with a bilingual English and Japanese kanji day-date display.

  • All-stainless-steel construction, engraved skin-diving caseback, and original 100-meter water-resistance specification.

02 Specimen sheet

Brand
Orient
Reference
D39306-81
Year
unknown
Gender
Men
Movement
Quartz caliber D393
Function
second, minute, hour, day, date
Case
36 mm - Stainless steel
Case back
Stainless steel
Case excluding crown
36 mm
Case with crown
39 mm
Lug-to-lug
40 mm
Thickness (crystal included)
12 mm
Lug width
17 mm
Dial
Soft white with large black Arabic numerals
Strap / bracelet
Original stainless steel bracelet
Wrist fit
Fits wrists up to 6.75 in
Buckle
Original stainless steel
Crown
Original
Crystal
acrylic (condition: 10/10)
Water resistance
None — keep dry
Box
No
Paper
No
Includes
Watch and bracelet only

03 Condition report

This Orient Jupiter Swimmer 100 is in good vintage condition overall and presents very nicely. The stainless steel case has been polished and refinished, restoring its attractive finish. The original bracelet shows numerous light surface scratches throughout, consistent with normal vintage wear. The clasp and caseback also exhibit light scratches from use. A brand-new acrylic crystal has been installed and is in flawless, scratch-free condition. Overall, a well-presented vintage example with a refreshed case and honest signs of age throughout the bracelet.

Assessed in-house from the watch in hand. Full details on request.

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