About product images
All pre-owned and antique items are photographed individually.
Please note that images showing the item being worn are for illustrative purposes only and may differ from the actual product.
Specifications & Condition
- Inquiry code
- U-21342212-2
- Available at:
- Shinjuku store
- Brand
- OMEGA
- Model
- Seamaster / SEAMASTER
- Product name
- Seamaster Diver 300M Co-Axial Master Chronometer Nekton Edition
- Model number
- 210.30.42.20.01.002
- Dial color
- Gray
- Movement
- Self-winding
- Case Material
- Stainless Steel / SS × Titanium / TI
- Case Size
- Case: Diameter 42mm (excluding crown)
- Strap Type
- Bracelet
- Strap Material
- Stainless Steel
- Arm circumference
- 20.5cm
- Weight
- 197g
- Accessories
- Outer box (damaged) / Inner box / Instruction manual / Warranty card (issued October 2025) / Master Chronometer certificate
-
Maintenance
Condition -
- Exterior finishing/Machine inspection
- (At our store, February 2026)
- Case:
- It is in good condition with no noticeable scratches or damage.
- Bezel:
- It is in good condition with no noticeable scratches or damage.
- Glass:
- It is in good condition with no noticeable scratches or damage.
- Hand/Dial:
- It is in good condition with no noticeable scratches or damage.
- Strap:
- There are a few minor scratches, but it shows little signs of use and is in good condition.
- Exterior finishing/Machine inspection
- Model Information
- Released in support of Nekton, this model features a polished and brushed Stainless Steel case, a laser-plated black ceramic dial, and a three-dimensional wavy pattern with a matte and polished finish. The caseback, engraved with the medallion of Nekton's owned submersible, features OMEGA's innovative naïd locking system, allowing you to enjoy the case back in an upright position. Power reserve 55 hours. Released in 2020.
- In-store pickup
- Possible
- Returns
- Possible
- Our Guarantee
- Regarding natural failure of internal machinery
- 1 year from the date of purchase
- List Price
- 1,089,000円
- Individual Code
- 0CKGOMAU0001
Disclaimer
* Product images of New and Unused products are posted using images of the same model.
Please note that there are individual differences in the presence or absence of manufacturer protective seals.
In addition, there may be minor changes made by the manufacturer, but please note that we will sell it with the specifications of the stock product.
In addition, Used and antique items are photographed of the actual product.
*The color may differ from the actual product depending on the lighting and monitor settings.
*Due to privacy concerns, we refrain from posting serial numbers and limited edition numbers on the web.
We are also unable to answer any inquiries made by phone.
*As we also sell our products in-store, there may be a time difference between ordering on the website and processing in-store, and the item may be SOLD OUT.
Please be aware of this.
Also, if you would like to purchase in person, please contact us by phone or email in advance to check stock availability.
* In the case of antique or used products, alternative parts may be used for the exterior and internal machinery.
*The listed price is the price at the time of arrival.
Please note that the current price may differ.
SHOPPINGGUIDE
STORE
INFORMATION
- [Address]
- 160-0022
3-28-13 Shinjuku, Shinjuku-ku, Tokyo
Nakajima Building 1F - [Phone]
- +81-3-6626-5025
- [Business hours]
- 11:00~19:30


