To modify your purchase order,
contact the auction house.
139 - The Seiko Calculator, model 6138-7000, is an iconic automatic chronograph from the world of 1970s sports watches. This example, dating from 1975 and bearing serial number 512228, features a black dial with baton hour markers, a clean and functional design typical of the era. The Seiko Caliber 6138B automatic movement powers this timepiece reliably. The stainless steel case measures 44 mm in diameter and 15.1 mm in thickness—generous proportions that reflect the chronograph’s sporty spirit. The rotating bezel facilitates the measurement of elapsed time, while the mineral crystal protects the dial. The luminescent hands and hour markers ensure readability in all conditions. The original steel bracelet, complete with its vintage folding clasp, lends the watch remarkable authenticity. Water resistance is rated at 30 meters. The overall condition is good, with the expected visible signs of wear on the case, dial, bezel, and crystal—a natural legacy of eighty years of use. The watch underwent an in-house service in March 2026, ensuring reliable operation. This piece is sold without the original box or papers. A complete and original example of the legendary Calculator, sure to appeal to collectors of authentic vintage chronographs.
The converted amounts are provided for informational purposes only. Only the currency determined for the sale by the auction house is binding. You can select a different currency by going to the "Preferences" page in your profile.
Fees including the auction house's fees and the platform's fees. For further details, please refer to the auction house's General Terms and Conditions of Sale.
Estimation
Sale fees
The Seiko Calculator, model 6138-7000, is an iconic automatic chronograph from the world of 1970s sports watches. This example, dating from 1975 and bearing serial number 512228, features a black dial with baton hour markers, a clean and functional design typical of the era. The Seiko Caliber 6138B automatic movement powers this timepiece reliably. The stainless steel case measures 44 mm in diameter and 15.1 mm in thickness—generous proportions that reflect the chronograph’s sporty spirit. The rotating bezel facilitates the measurement of elapsed time, while the mineral crystal protects the dial. The luminescent hands and hour markers ensure readability in all conditions. The original steel bracelet, complete with its vintage folding clasp, lends the watch remarkable authenticity. Water resistance is rated at 30 meters. The overall condition is good, with the expected visible signs of wear on the case, dial, bezel, and crystal—a natural legacy of eighty years of use. The watch underwent an in-house service in March 2026, ensuring reliable operation. This piece is sold without the original box or papers. A complete and original example of the legendary Calculator, sure to appeal to collectors of authentic vintage chronographs.
Auction details
Online Auction on October 25, 2026: Watches.Auction house
Martin et Associés (HDV Metz) +33 3 87 36 68 53 commissaire-priseur@hoteldesventesdemetz.frDelivery is optional. You can use the carrier of your choice. The stated price does not include the lot price or the auction house fees.