Casio Duro MDV-106B-1A1V (Pepsi)
Dive Watch · Casio (Casio Computer Co., Ltd.), an entry-level but highly respected Japanese manufacturer
Period: Modern Tool Watch (2010s-Present)
Type
Dive Watch
Brand
Casio (Casio Computer Co., Ltd.), an entry-level but highly respected Japanese manufacturer
Movement
Quartz Caliber 2784, approximately 3-year battery life, +/- 20 seconds per month accuracy
Dimensions
Case: 44mm; Thickness: 12mm; Lug-to-Lug: 48mm; Lug Width: 22mm
Description
Widely regarded as the best value dive watch in the world, the Casio 'Duro' is a robust tool watch that punches far above its weight class. It combines classic diver aesthetics—inspired by the Rolex Submariner—with legendary Japanese reliability and professional-grade water resistance.
Key Features
The Marlin logo on the dial (discontinued in some newer regions), 200m water resistance, screw-down crown, and the 'Pepsi' color scheme
Dial Description
Sunray black finish, applied luminous round/rectangular indices, silver-framed hands with a red-tipped sweep second hand, date window at 3 o'clock, and the iconic Marlin logo above 6 o'clock
Case Material
316L Stainless Steel with brushed upper surfaces and polished flanks
Crystal Type
Flat Mineral Crystal
Bezel Details
Unidirectional 120-click rotating bezel with an aluminum insert in blue and red 'Pepsi' colorway
Crown & Pushers
Screw-down crown at 3 o'clock with integrated crown guards
Bracelet or Strap
Black resin 'accordion-style' dive strap with a stainless steel tang buckle
Caseback Details
Screw-down solid stainless steel caseback featuring the etched Marlin logo and model specifications
Movement Type
Quartz Caliber 2784, approximately 3-year battery life, +/- 20 seconds per month accuracy
Water Resistance
200 Meters (20 ATM); suitable for swimming, snorkeling, and recreational diving
Origin & Provenance
Designed in Japan; typically cased in China using a Japanese quartz movement
Age Estimate
Circa 2020-Present (referenced by the 'Pepsi' bezel variant released after the original black model)
Cultural Significance
It serves as a gateway watch for many enthusiasts, proving that horological merit and ISO-standard capability are available at an accessible price.
Condition Notes
Very Good to Excellent. The bezel and crystal appear clean; the resin strap shows minimal wear. Lume is functional but typically fades faster than luxury divers.
Value Estimate
$50 - $70 USD (MSRP is approx. $70, frequently found on sale for less)
Care & Maintenance
Battery replacement every 3 years; ensure the crown is fully screwed in before water exposure; rinse with fresh water after salt-water use.
Similar Watches
Seiko SKX009 (automatic, more expensive), Orient Mako II (automatic, more expensive), Citizen Promaster Dive (Eco-Drive solar)
Interesting Facts
The Casio Duro is famously known as the daily wearer of Microsoft founder Bill Gates, proving its appeal transcends its modest price point.