The Ancient Hour
Rare Seiko Lord Matic "Baby Grand Seiko" 5606-7020 - Kanji day/date calendar
Rare Seiko Lord Matic "Baby Grand Seiko" 5606-7020 - Kanji day/date calendar
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Rare Seiko Lord Matic 5606-7020 “Baby Grand Seiko” – Kanji Day/Date
For sale is a highly sought-after Seiko Lord Matic Ref. 5606-7020, often nicknamed the “Baby Grand Seiko” thanks to its refined case design and premium finishing. Powered by the high-grade 5606 automatic movement, this piece offers both elegance and reliability, making it a true prize for vintage Seiko enthusiasts.
🔹Measurements
▫️Diameter: 36mm
▫️Lug-to-Lug: 42mm
▫️Lug Width: 18mm
▫️Thickness: ~11mm
🔹Features
▫️Seiko 5606 automatic movement
▫️Bilingual Kanji/English day-date (fully functional quickset)
▫️Original silver sunburst dial
▫️Sharp case with brushed & polished finishing
▫️Acrylic crystal
▫️Fitted with a brand-new leather strap
▫️Running well and keeping good time
▫️Feel free to reach out for additional photos or details
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Item Number | |
Bezel Color | |
Movement | 5606 |
Reference Number | |
Band/Strap | |
Vintage | Yes |
Brand | Seiko |
Case Color | |
Department | Men's |
Type | |
Band Color | Brown |
Dial Color | White |
Lug Width | 18mm |
Model | Lordmatic |
Band Width | 18mm |
Case Size | 36mm |
Case Material | Stainless steel |
Country/Region of Manufacture | Japan |
Display | Analog |
Category |







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Has this been authenticated?
All watches at The Ancient Hour are guaranteed authentic by our trusted watchmakers and us. Certificate included!
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Has this been serviced?
All watches at The Ancient hour are professionally serviced before being offered at our shop. Servicing is done by our trusted watchmakers and gone through very capable hands.
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Mechanical guarantee?
Each watch comes with a 1-year mechanical warranty so if anything goes wrong, please let us know immediately.
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Inspection period?
We definitely want you to love your watch, so you always have 14 days to fall in love or return to The Ancient Hour, no questions asked.
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How much is the shipping?
We exclusively deliver worldwide via UPS Courier service which is free for you.
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General care?
Given that most of our watches are around half a century old, they will need to be treated with extra love and care, and they require servicing every 4-5 years.