Seiko Marine Master Professional
More Seiko market data- Brand
- Seiko
- Model
- Marine Master Professional
- Dial
- black
- Bracelet / strap
- bracelet
- Status
- Available
Watch listing
Seiko Marine Master Professional and 1 more
Seiko Marine Master Professional and 1 more listing with structured specifications, pricing, condition, and market context. Observed details include $1,700.
Updated Jun 20, 2026
![[WTS] Seiko Diver Marine Master Professional 300m “MM300” Cal. 8L35 Hi-beat Automatic — $1,700 (Shipped/Tariff Covered) image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1ti2gzc%2F8a2d417a768de018f2b1ba10863c49e063f0400a6bc106058846f985ebd0d926.jpg&w=3840&q=75)
![[WTS] Seiko Diver Marine Master Professional 300m “MM300” Cal. 8L35 Hi-beat Automatic — $1,700 (Shipped/Tariff Covered) image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1ti2gzc%2F11c67b40dea38b5ffff38c50556537dc1bf7b6d208f5ac386f13bea45e559465.jpg&w=3840&q=75)
![[WTS] Seiko Diver Marine Master Professional 300m “MM300” Cal. 8L35 Hi-beat Automatic — $1,700 (Shipped/Tariff Covered) image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1ti2gzc%2F11959a81582780b8a9d7c222fce89a40f69fc68050273768b208e354dee59100.jpg&w=3840&q=75)
![[WTS] Seiko Diver Marine Master Professional 300m “MM300” Cal. 8L35 Hi-beat Automatic — $1,700 (Shipped/Tariff Covered) image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1ti2gzc%2F7f82f7441be5758bff8412c5416f444538996c49ae74ecf02dd248df90628ec5.jpg&w=3840&q=75)
![[WTS] Seiko Diver Marine Master Professional 300m “MM300” Cal. 8L35 Hi-beat Automatic — $1,700 (Shipped/Tariff Covered) image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1ti2gzc%2F47abe175b4aa875c82495bafcdc937c2816aef2101f87d6adbb7260645925ba1.jpg&w=3840&q=75)
![[WTS] Seiko Diver Marine Master Professional 300m “MM300” Cal. 8L35 Hi-beat Automatic — $1,700 (Shipped/Tariff Covered) image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1ti2gzc%2F3ee7618199d17a602fe433fd3bcbccc48b3116120f29a80f5a3db8f87fb0be95.jpg&w=3840&q=75)
Observed asking price
$1,700
Status: Available
At a glance
- Listing type
- For sale
- First observed
- May 19, 2026
- Watches
- 2
- Photos
- 10
Structured details
2 watches in this listing
$1,700
Seiko SLA021
More Seiko market data- Brand
- Seiko
- Model
- SLA021
- Reference
- SBDX023
- Dial
- black
- Bracelet / strap
- steel bracelet
- Status
- Available
Listing notes
[WTS] Seiko Diver Marine Master Professional 300m “MM300” Cal. 8L35 Hi-beat Automatic — $1,700 (Shipped/Tariff Covered)
Source and availability
Watchtrader structured this page from an observed Reddit community listing. Asking prices, condition, and availability can change after publication; verify the details with the original source before relying on them.
View original Reddit listingMore from this brand
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