![]() ![]() This is an amazing all around sport watch that looks great. The case is in good condition with minimal scuffs and scratches. The dial is a beautiful matte black color with tritium lume plots that show some wear. The Fine Printĭimensions: 38mm diameter 13mm thicknessĬaliber: Manual wound chronograph caliberīracelet/Strap: HODINKEE Dark Kangaroo NATO Strapīox/Papers: No What we Love and What You Should Know Chronomaster Aviator Sea Diver NIVADA GRENCHEN Manual CHRONOGRAPH Stainless Steel 38m 2,065 + 49 for shipping. The main achievement of this "Swiss army knife" Nivada is actually its outstanding legibility, not to mention its great 38mm case size. However it was signed, this Chronomaster was designed for aviation and diving, which is also noted on the dial. Movado claimed that Nivada sounded too similar to their own brand name, and Croton was later added to differentiate the two for the U.S. You might have seen a similar watch with the Croton branding the reasons lies with a legal battle between Nivada and Movado in the United States. It's complete with rotating bezel, tachymeter scale, and regatta timer. CROTON AQUAMATIC SWISS QUARTZ STAINLESS STEEL WATER RESISTANT 10ATM-330FT DATE. This Croton Chronomaster Aviator Sea Diver 9870 was introduced in 1969, and it was produced until 1978.Why This Watch Matters This sporty Nivada Grenchen Chronomaster is more than just a good-looking watch. Croton Chronomaster Stainless Steel Quartz Mens Watch. It includes a micrometer regulator, and the mechanism oscillates at a frequency of 18,000 vph (2.5Hz). It's constructed with 17 jewels, an Incabloc shock absorber device, a straight-line lever escapement, and a self-compensating Breguet flat balance spring. 248/Valjoux 7733 mechanical manual-winding chronograph movement. ![]() This Croton Chronomaster Aviator Sea Diver 9870 has a Landeron cal. It has a 45-hour power reserve at full wind, and the 14mm thick case, dial, and movement are all signed. There are twin recessed black subsidiary dials, including a running seconds register at 9 o'clock, and a 30-minute chronograph totalizer with a red 5-minute regatta countdown wedge. It has luminous broad arrow steel baton hands, and a center sweep chronograph seconds hand. There is a black dial with luminous baton hour indices around an outer minute/one-fifth second scale, twin luminous dots at 12 o'clock, and the perimeter has a tachymeter to 600 UPH. ![]() The 38.5mm diameter solid two-body case, downturned lugs, and bi-directional rotating flat bezel with a 60-minute dive scale with Arabic numeral hour markers every five minutes, are polished/brushed. ![]() SWISS." It has a black bi-directional 60-min bezel with 2 time zones. There are round chronograph push buttons with a screw-down winding crown, and a solid screw-down case back, inside of which is hand tooled a sunray pattern and engraved with "CROTON INTERNATIONAL WATCH CO. It has a shell cordovan strap with a stainless steel tang buckle, and a scratch resistant sapphire crystal. 1970's stainless steel Croton Chronomaster Aviator Sea Diver 9870. Japan Miyota OS20 Chronograph Movement All stainless steel Date window between 4:00 & 5:00 24 Hour Military Tie sub dial at 3:00 60 Second sub dial at 6:00 60 minute sub dial at 9:00 ¼ minute marker flange Tachymeter bezel 43mm case 12. More about Vintage Chronomaster Aviator Sea Diver SS ![]()
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