Skip to product information
1 of 7

SBTM321 | Seiko Selection Solar

Regular price
¥41,360
Regular price
Sale price
¥41,360
Tax included. Shipping calculated at checkout.
SBTM321 | Seiko Selection Solar
SBTM321 | Seiko Selection Solar
SBTM321 | Seiko Selection Solar
SBTM321 | Seiko Selection Solar
SBTM321 | Seiko Selection Solar
SBTM321 | Seiko Selection Solar




Sophisticated blue dial men's watch

Seiko Selection's SBTM321 is a solar radio-controlled wristwatch with a beautiful deep navy blue dial. There is no need to worry about changing batteries or setting the time, and it smartly supports the daily life of busy business people. High visibility thanks to the use of sapphire glass is also an attractive point.




Japanese-made radio solar that can be used on and off

A new product from SEIKO's S series has arrived with a standard design that is timeless. The silver stainless steel belt and three-dimensional indexes give your wrist a cool, high-quality feel. The moderate case diameter of 39.5mm goes well with a wide range of clothing, from suits to casual wear.


Stylish analog clock with excellent practicality

Equipped with a 7B72 movement that converts light into electricity, this watch is full of functional beauty. Equipped with Lumibrite, which makes it easy to check the time even at night, and a convenient date calendar. The super clear coating suppresses light reflection and makes the dial clearly visible.


A slim metal band that will elevate your wrist.

The slim 9.5mm design ensures a comfortable fit that won't get caught on shirt cuffs. The one-push, three-fold clasp makes it easy to put on and take off on busy mornings. It is also chosen as a gift for a loved one or as a reward for yourself.








Genuine 7 Year Warranty Campaign Free Shipping Seiko Selection Solar Radio Watch Limited Distribution Model Made in Japan Radio Solar Men's Watch SBTM321 SEIKO SELECTION The Standard Analog Blue ◆Introducing a high-quality solar radio watch with caliber 7B72 (equipped with electronic crown). By adding steps to the case lugs, we emphasize the brightness and darkness of the light, creating a crisp impression. By making the abbreviations a separate metal part, the texture of the index is enhanced. Lumibrite is used for the hands, making them easy to read even at night. The sapphire glass has a super clear coating. Dial visibility is improved by suppressing light reflection, and the antifouling film on the surface makes it difficult to get dirty. Equipped with an electronic crown, it not only makes it easier to adjust time differences, but also receives standard radio waves from 6 stations in 5 areas around the world (Japan, China, the US, Germany, and the UK). Compatible with JIS class 1 magnetic resistance. Release date: Released in May 2022
Product number SBTM321
Drive method Radio solar (7B72)
Material: case stainless steel
Material: belt Stainless steel (wave pin type)
windshield Sapphire glass (super clear coating)
Dial color blue
belt color silver
Size (length x width x thickness) Approximately 46×39.5×9.5mm
Can width Approximately 20mm
belt around arm Maximum approximately 19.5cm
weight Approximately 111g
Specifications Reinforced waterproof for daily life (10 atm)
When not receiving: Average monthly difference ±15 seconds
Operating period: Approximately 9 months when fully charged, approximately 2 years when power saving
date display
Lumibrite (hands/index)
Anti-magnetic
Overcharge prevention function
Instant start function
Power save function
Fully automatic calendar function (until December 31, 2099)
Radio wave correction function (receives standard radio waves from Japan, China, America, Germany, and the UK)
Made in Japan
accessories Warranty/SEIKO original box
*As part of our efforts to address environmental issues, the instruction manual has been digitized.
Please check the included warranty for details.
Guarantee Manufacturer's three year warranty
▼Would you like to join us?
→Size adjustment →Gift wrapping
→Name engraving/engraving →New battery replacement before shipping
・Please order together with the product.
・Some products may not be compatible with various services.
Please refer to each service page for details.