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CUSTOMER REVIEWS

5 verified buyers

4.8
out of 5
Review photo by Marcus T. Verified Purchase

"Been collecting watches for fifteen years and own several pieces three times this price. The gradient enamel dial on the blue version is genuinely stunning in person - photos do not capture the depth. The Miyota 9015 keeps better time than my Seiko 5, and the sapphire crystal with AR coating is crystal clear."

Review photo by Elena R. Verified Purchase

"Switched from my Apple Watch last month and could not be happier. This 39mm sits perfectly on my wrist. The screw-down crown with the hexagon logo gives it a purposeful feel, and wearing a mechanical watch that winds itself just feels right."

Review photo by David Chen Verified Purchase

"Wore this to three client meetings this week. The 316L brushed bracelet with polished chamfered edges looks polished without being flashy. Only giving it four stars because the on-the-fly adjustable clasp took me a minute to figure out, but it works perfectly once you understand the mechanism."

Review photo by Patricia W. Verified Purchase

"Got this for my father's 60th birthday. He collects vintage watches and was skeptical until he saw the screw-down case back with the Chinese stamp engraving inspired by porcelain marking. The low-temperature enamel dial reminds him of the JianZhan pottery he saw in Beijing years ago."

Review photo by Kyle M. Verified Purchase

"First serious watch I bought after years of wearing cheap quartz. The 42-hour power reserve means I can leave it off my wrist for a day and it still runs. BGW-X1 lume on the hands is bright blue and actually useful at night. The gradient enamel texture changes under different lighting angles."

Provn Verified

San Martin JianZhan Porcelain Automatic

San Martin JianZhan Porcelain Automatic

Regular price $305.15 USD
Sale price $305.15 USD Regular price $305.15
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100% AuthenticCertificate of authenticity included
30-Day ReturnsFree returns, refund within 24h
1-Year WarrantyMovement and case fully covered

CUSTOMER REVIEWS

5 verified buyers

4.8
out of 5
Review photo by Marcus T. Verified Purchase

"Been collecting watches for fifteen years and own several pieces three times this price. The gradient enamel dial on the blue version is genuinely stunning in person - photos do not capture the depth. The Miyota 9015 keeps better time than my Seiko 5, and the sapphire crystal with AR coating is crystal clear."

Review photo by Elena R. Verified Purchase

"Switched from my Apple Watch last month and could not be happier. This 39mm sits perfectly on my wrist. The screw-down crown with the hexagon logo gives it a purposeful feel, and wearing a mechanical watch that winds itself just feels right."

Review photo by David Chen Verified Purchase

"Wore this to three client meetings this week. The 316L brushed bracelet with polished chamfered edges looks polished without being flashy. Only giving it four stars because the on-the-fly adjustable clasp took me a minute to figure out, but it works perfectly once you understand the mechanism."

Review photo by Patricia W. Verified Purchase

"Got this for my father's 60th birthday. He collects vintage watches and was skeptical until he saw the screw-down case back with the Chinese stamp engraving inspired by porcelain marking. The low-temperature enamel dial reminds him of the JianZhan pottery he saw in Beijing years ago."

Review photo by Kyle M. Verified Purchase

"First serious watch I bought after years of wearing cheap quartz. The 42-hour power reserve means I can leave it off my wrist for a day and it still runs. BGW-X1 lume on the hands is bright blue and actually useful at night. The gradient enamel texture changes under different lighting angles."

Why We Chose This Watch

Curator's Note

This watch landed on my desk fresh from a design fair in Beijing, and it's the kind of piece that makes you stop and look twice. The dial isn't printed or stamped — it's built using a low-temperature enamel process that mimics 1,000-year-old porcelain techniques. The Miyota 9015 inside is the same movement you'll find in dress watches costing two to three times the price. What matters here is restraint: 36mm, 39mm, or 42mm, a sapphire crystal that catches light without distorting it, and a case back engraved like authentic pottery. This is depth without loudness.

Miyota 9015 Caliber Japanese ultra-thin automatic, found in dress watches at $800–$1,200
Sapphire Crystal with AR Coating Anti-reflective treated, scratch-proof
10 Bar Water Resistance [100m equivalent] daily wear rated
Low-Temperature Enamel Dial Gradient porcelain texture, temperature stable to 180°C

Full Specifications

Movement
CaliberMiyota 9015 Automatic
Jewels24
Frequency28,800 bph
Power Reserve42 hours
FunctionsHours · Minutes · Seconds · Date
Case
Material316L Stainless Steel
FinishBrushed + polished edges
Diameter36mm / 39mm / 42mm
Thickness10.1mm
Lug to Lug43.5mm / 46.5mm / 49.5mm
Water Resistance100m (10ATM)
Case BackScrew-down with engraved Chinese stamp
CrownScrew-down
Dial & Crystal
DialGradient enamel porcelain texture, blue / red / brown
CrystalSapphire Crystal with AR coating
Bezel316L stainless steel, brushed
LuminousBGW-X1 blue light on hands and markers
Bracelet
Type316L solid stainless steel bracelet or FKM strap
Width19mm / 20mm / 21mm
FinishBrushed with polished chamfered edges
ClaspOn-the-fly adjustable with folding safety
Ownership
Warranty2 years

Shipping & Returns

Free Tracked Shipping Worldwide orders, no minimum
5–9 Business Days Estimated global delivery
30-Day Free Returns Hassle-free worldwide
Presentation Box Premium unboxing experience
Certificate of Authenticity Included with every order — provenance you can hold
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San Martin JianZhan Porcelain Automatic — Hero ShotSan Martin JianZhan Porcelain Automatic
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