Byrd with a six-ship flotilla explored the Antarctic Ross Sea with the aim of establishing a research station. You see, in 1955 a Naval expedition led by Admiral R. However, there are few as desirable as this example with its Valjoux 92, broad arrow, tachymetre dial, fully graduated bezel, and red five-minute subdial counter.īy early 60s, The Nivada Croton Chronomaster had made a name for itself. Its production spanned differing dials, cases, register counts, and even calibres throughout its run from 1963 until 1978. Unrecognized not for its merit, but unrecognized in the sheer degree of depth and comparably vast scholarship that surrounds this still-attainable chronograph.
This Croton Chronomaster Aviator Sea Diver 9870 was introduced in 1969, and it was produced until 1978.The Chronomaster is not only handsome, but may perhaps be one of the best examples ever of unrecognized depth within a single reference. 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 white 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 steel baton hands with luminous inserts, and a red center sweep chronograph seconds hand. There is a black dial with luminous baton hour indices around an outer minute/one-fifth second scale, a red marker 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. More about Vintage Chronomaster Aviator Sea Diver SS
0 kommentar(er)
