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Product details
Description
The Seiko Limited Edition Black Series Prospex Sumo Automatic Men's Watch SPB433J1 is a bold professional diver inspired by the darkness beneath the ocean's surface. Part of Seiko's exclusive Black Series collection, this Limited Edition timepiece showcases a stealthy all-black aesthetic with a durable black PVD-coated stainless steel case and bracelet, complemented by a ceramic unidirectional rotating bezel. Built for serious underwater performance and everyday durability, it is powered by Seiko's trusted in-house Calibre 6R35 automatic movement, delivering reliable mechanical precision and an extended power reserve. The large 45 mm case provides exceptional wrist presence, while LumiBrite on the hands, hour markers, and bezel ensures outstanding visibility in low-light and underwater environments. Finished with a scratch-resistant sapphire crystal and professional 200-metre diver's water resistance, the SPB433J1 perfectly combines rugged capability, Japanese craftsmanship, and striking modern design.
Case & crystal5
Case Size
45 mm Diameter × 13.4 mm Thickness
Lug Width
20 mm
Case Material
Stainless Steel with Black PVD Coating
Case Shape
Round
Glass
Sapphire Crystal
Movement3
Watch Type
Automatic Diver's Watch
Movement
Automatic (Calibre 6R35)
Functions
Date Display
Dial2
Dial Colour
Black
Luminosity
LumiBrite on Hands, Hour Markers and Bezel
Strap & clasp3
Band Material
Stainless Steel
Band Colour
Black
Clasp
Triple Folding Clasp
General11
Brand
Seiko
Model Number
SPB433J1
Collection
Prospex
Series
Sea
Edition
Black Series Limited Edition
Bezel
Unidirectional Rotating Stainless Steel Bezel with Ceramic Insert and Black PVD Coating
Display
Analog
Water Resistance
200 Metres (20 Bar)
Special Features
Limited Edition, Black Series Design, Calibre 6R35 Automatic Movement, Black PVD-Coated Stainless Steel Case and Bracelet, Ceramic Diver's Bezel, Sapphire Crystal, Professional Diver's Specifications
Gender
Men
Warranty
2 Years Warranty
Highlighted points
Case size: 45 mm
Movement: Automatic
Case Material: Stainless Steel
Case Shape: Round
Dial Color: Black
Water Resistent: 200m
Everything You Need to Know
Are the watches sold on Ramesh Watch Co genuine?
Yes. Ramesh Watch Co has been in watch retail since 1948 and is an authorised retailer for brands like Rado, Tissot and Seiko. We also sell Casio, Fossil, Armani Exchange, Emporio Armani, Michael Kors and many more. Every watch is 100% original and comes in the brand's original box with its warranty card.
Do the watches come with a warranty?
Yes. Every watch is covered by its brand's official warranty, and the warranty card is included in the box. If a functional or manufacturing issue comes up, we help you get it repaired or replaced through the brand's warranty.
Can I return or exchange my watch?
Yes, within these time limits:
Change of mind (you don't like the look or size): request a return within 48 hours of delivery.
Functional or manufacturing issue: request a return within 10 days of delivery.
The watch must be unused and returned with its original box, warranty card, tags and all accessories. Smartwatches cannot be returned for change of mind; issues with them are handled under the brand warranty.
How long does a refund take?
Once we receive the watch, we inspect it within 24–48 hours. After approval, we start the refund within 48 hours. The amount usually reaches your account in 5–10 working days.
Online payments (UPI, card, net banking) are refunded to the same payment method.
COD orders are refunded to your bank account by NEFT/IMPS.
A return shipping fee applies: ₹200 on orders below ₹10,000, and 2% of the product value on orders of ₹10,000 and above.
Is Cash on Delivery available? How do I contact you?
Yes, you can pay by Cash on Delivery or online (UPI, card, net banking). For order, return or product questions, call or WhatsApp us on 7674812669 / 9885300092. You can also visit our showrooms in Hyderabad.
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