FSOT: Seiko Marine Master 300M Diver SLA021
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usmc93 has received 100 feedback from other users on WatchUSeek, of which 100 (100%) was positive and 0 (0%) was negative.

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robmillersdg 1 day ago

Outstanding Transaction with USMC93

GregBe 3 days ago

usmc93 is a terrific seller

Kurteti 1 week ago

Usmc93 is a straight arrow

Mondo Shizmo 3 weeks ago

usmc93 is a fantastic buyer

omega600 7 months ago

Excellent Transaction with usmc93

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Price Guide for a Related Model

Seiko Prospex (SLA021)

Crystal: Sapphire crystal

Power Reserve: 50 hours

Movement Caliber: 8l35

Market Average


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The Seiko Prospex (SLA021) is a watch model from the Seiko brand and Prospex collection. The average price of a Seiko SLA021 on the private sales market is $2,143, while you can expect to pay $2,453 from a gray market dealer.

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