ドーンとグリーンカラーのダイヤルに「50th」の記載がある「SUMO」。1965-2015のセイコーダイバー誕生50周年を記念してタイ王国限定でリリースされたモデルTidal Wave Patter o Gree DialStailess Steel BraceletSapphire Crystal + Magifyig with ati-reflective coatigUidirectioal Rotatig BezelDouble Lockig Fold-over Push-butto ClaspGold color Screw Dow CrowGold color IdexLimited Productio 820 Pcs. (For Thailad retail oly)Screw Back Case6R15 CaliberAutomatic with Maual Widig CrowDiver’s 200m23 Jewels~50 Hour Power ReserveAccuracy of +25 to -15 Secods per DayWater Resistat to 200mResistat to Magetic IterfereceSecod Had Stop FuctioLumiBrite o Hads ad Markers50 x 48 x 13.3mm Case Size44mm Case Diameter20mm Bad WidthExtra Seiko Polyurethae Rubbers bad (Icluded)Ref # SPB031J1

Prospex Green Sumo 50th Anniversary | Shopping In Japan

セイコースモウの完全ガイド

SEIKO PROSPEX SUMO 50th EDITION (820) Very highly sought Rare model!SPB031J1 | eBay

The Seiko Prospex Green Sumo 50th Anniversary watch hands-on

セイコースモウの完全ガイド

Prospex Green Sumo 50th Anniversary | Shopping In Japan

Seiko Prospex Green Sumo 50th Anniversary Watch (820 Limited) SPB031 - ROOK JAPAN

SEIKO PROSPEX SUMO 50th EDITION (820) Very highly sought Rare model!SPB031J1 | eBay

SEIKO Prospex Sumo 50th Anniversary Thailand Limited Edition 820 pcs. – Watchkeeper

Prospex Green Sumo 50th Anniversary | Shopping In Japan

セイコースモウの完全ガイド

SEIKO Prospex Sumo 50th Anniversary Thailand Limited Edition 820 pcs. – Watchkeeper

SPB103J1 | Seiko Watch Corporation

SEIKO Prospex Sumo 50th Anniversary Thailand Limited Edition 820 pcs. – Watchkeeper