Skip to main content
Go to accessibility notice


    Sinclair Harding, England, "John Harrison" Moonphase Sea Clock With "Grasshopper Escapement"
    Case: skeletonized, rhodium and gold plated steel and brass, blued screws, rhodium plated base, glass cover, height: 45 cm, width: 32 cm, depth: 21 cm, marked 1137.105
    Dial: hand silver finished with Roman numerals, blued steel Breguet moon hands, hand painted 6 inch moon phase dial with Lunar distance markings
    Movement: fusee and chain, eight day, compound pendulums, 240 degrees sweeping seconds hand, lock and release pallets

    Condition Report*: Type: Sinclair Harding Moonphase Sea Clock "Grasshopper Escapement"
    Model: 1137.105, GE 7
    Dial: Roman numerals
    Hands; blued Breguet moon hands
    Metal: gold and rhodium plated steel and brass
    Case No: 1137.105
    Case Length: 45 cm x 32 cm x 21 cm
    Crystal: with glass base and cover
    Watch Movement: fusee and chain, eight day, compound pendulums, 240 degrees sweeping seconds hand, lock and release pallets
    Circa: modern
    Condition: clock is in very good condition, superb dial, movement very good and running
    Notes: Lot to be previewed only in Dallas by appointment.
    *Heritage Auctions strongly encourages in-person inspection of items by the bidder. Statements by Heritage regarding the condition of objects are for guidance only and should not be relied upon as statements of fact, and do not constitute a representation, warranty, or assumption of liability by Heritage. All lots offered are sold "AS IS".

    Auction Info

    Auction Dates
    October, 2015
    29th Thursday
    Bids + Registered Phone Bidders: 21
    Lot Tracking Activity: N/A
    Page Views: 4,335

    Buyer's Premium per Lot:
    25% on the first $100,000 (minimum $14), plus 20% of any amount between $100,000 and $1,000,000, plus 12% of any amount over $1,000,000 per lot.

    Shipping, Taxes, Terms and Bidding
    This item cannot be shipped using standard methods. Please contact us for more information. Sales Tax information

    Important information concerning Sales Tax and Resale Certificates. Learn More

    Terms and Conditions  |  Bidding Guidelines and Bid Increments |  Glossary of Terms

    Sold for: Sign-in or Join (free & quick)
    Track Item

    Heritage membership

    Join Now - It's Free

    1. Past Auction Values (prices, photos, full descriptions, etc.)
    2. Bid online
    3. Free Collector newsletter
    4. Want List with instant e-mail notifications
    5. Reduced auction commissions when you resell your
    Consign now
    • Cash Advances
    • More Bidders
    • Trusted Experts
    • Over 200,000 Satisfied Consignors Since 1976 receives more traffic than any other auction house website. (Source:

    Video tutorial

    Getting the most out of search