Otsuka Lotec No.7.5 Watch, Jumping Hour, Stainless Steel, 40 mm, Automatic, Unworn
Otsuka Lotec No.7.5 Watch, Jumping Hour, Stainless Steel, 40 mm, Automatic, Unworn
- Dispatch
- Prepared and sent from Tokyo within 7–14 days, often sooner, or as arranged
- Arrival
- United States · usually 4–7 days after dispatch, insured and tracked
- Import
Duties and customs · View the estimate
A guide for this piece: about $1,073, based on the 10% US charge on the declared value of goods made in Japan.
The final figure is set by US Customs and depends on where the piece was made and the kind of object it is. Many antiques over a century old carry no ordinary duty; most jewellery and leather goods add a single-digit rate.
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An unworn Otsuka Lotec No.7.5 in stainless steel, with a jumping-hour window, a minute scale and a seconds dial set in three separate apertures, bought new in August 2026 and complete with its box and papers.
The Piece
Otsuka Lotec is the independent Japanese watch brand of Jiro Katayama, known for its retrograde and jumping-hour displays.
On the No.7.5 the hour appears in its own window and jumps to the next numeral on the hour, while the minutes run along a curved scale and the seconds turn in a small dial below. The three apertures are cut into a satin-finished steel face under a sapphire crystal, on a black leather strap.
The case is 40 mm (1.57 in) across, driven by a Miyota 82S5 automatic movement with a jumping-hour module made by the maker. It is unworn, and comes with its box, booklet and warranty card.
Details
- Maker: Otsuka Lotec
- Model: No.7.5
- Material: Stainless steel case; sapphire crystal; black leather strap
- Movement: Miyota 82S5 automatic with an Otsuka Lotec jumping-hour module
- Measurements: Case 40 mm (1.57 in) across
- Colour: Steel; silver dial; black strap
- Origin: Made in Japan
- Included: Box; booklet; warranty card
Condition
- Grade S in Japan: unused, with no marks from use.
- The watch is unworn and has been photographed only with its box and papers.
Condition grade S (unused) on the Japanese scale; see Japanese condition ranks, explained.
Authenticity & Care
Case and caseback engravings, dial printing, movement, crown and bracelet are examined together and documented in Japan before dispatch. Every piece carries the Japonista authenticity guarantee. Keep it away from magnets and damp, and have it serviced by a qualified watchmaker before regular wear.
Delivery from Japan
Packed by hand in Japan and shipped insured and tracked by EMS or an equivalent express service. Import duties and taxes, where applicable, are payable on arrival. Every sale is final; please ask anything before you buy, and see our published policy.
Considered offers are welcome through Send an Offer, and each one is reviewed personally. Pieces over $1,000 may be reserved over several payments with Layaway Privilege™.
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Collectors also search: Otsuka Lotec No.7.5 · Otsuka Lotec jumping hour watch · Otsuka Lotec 7.5 · Otsuka Lowtech 7.5 watch · Jiro Katayama watch
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