AMATA SIAMAuction House
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Time Machine concept illustration

THE SCIENCE OF TIME

Journey through time.Guided by science.

Explore the evidence behind each object and read its scientific report in the catalogue.

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Time Machine concept illustration

Evidence through time

Let the evidence tell the story.

Consider the methods, findings and limitations in each object’s report. Scientific results inform your decision; they do not certify every characteristic.

AMATA SIAM SCIENCE CENTER ↗

Dates for the collector’s calendar

Upcoming auctions

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A closer look · Short film

Phra Somdej Wat Rakhang, Pim Yai Phra Pratarn

Small details. A deeper perspective on collecting.

Explore the form, surface and fine details of Phra Somdej Wat Rakhang, Pim Yai Phra Pratarn through close-up imagery. An invitation to look carefully at Buddhist devotional art and consider the object alongside the evidence available for its study.

Before you collect

This film is an introduction for study, not a conclusive assessment of the object’s age, provenance or characteristics. Before bidding, review the individual lot description, condition and supporting documentation with our team.

01:03 · Original Thai audioVerified captions for this film are not yet available

Seminar & event programme

Siam International Heritage Auction 2026

19–20 December 2026

Skyview Hotel Bangkok · Sukhumvit 24, Bangkok

Thailand time (UTC+7)

19 December · 09:00

Academic seminar & auction preview

From 09:00: Opening ceremony, academic seminar — Scientific Dating of Antiquities: Methods and International Standards — and a preview of selected amulets, antiques, Buddhist art and works of art.

20 December

  1. 09:00–12:00Session I · Siamese Antiquities & Works of Art
  2. 12:30–15:00Session II · Buddhist Art, Amulets & Sacred Objects
  3. 15:00–18:00Session III · The Exceptional Collection — Masterpieces of Siam
Schedule is subject to change as appropriate. Lot listings and conditions of sale will be announced separately.

Buy Now · Private Sales

Collect beyond the auction calendar

All Buy Now ↗

Explore objects and their supporting evidence. Confirm availability and price with our team before purchasing.

Choose how to buy

Curated Objects

Objects selected by AMATA SIAM for sale outside auction. Contact our team to confirm price and availability.

Post-Auction Sales

Objects unsold at auction and approved for a subsequent sale. Contact AMATA SIAM to confirm the price and terms.

Private Sales

Discuss the price and terms individually with AMATA SIAM, outside competitive bidding. Select an object and contact our team.

Consigned Objects

Objects consigned by their owners. AMATA SIAM is the contracting seller, receives payment and issues documents to the buyer.

An enquiry or offer does not confirm a purchase. Please wait for our team to confirm availability, price, terms and payment instructions.

Offer an object for sale ↗Auction results ↗

Client enquiries

Begin a conversation with AMATA SIAM

Enquire about an upcoming auction, an object of interest or taking part. Share your questions with our team.

info@amatasiamcorp.com

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