18-11-2009, 05:56 PM
Alle steder jeg kan finde på nettet - helt uden undtagelse taler om tre samtidige automat kronografer i 1969, Buren/Hammilton/heuer/D&P, Zenith og Seiko.
Der er så forskellige betragtninger om hvilke der var mest originale og levede længst, men skidt med det. Jeg kan ikke finde noget sted overhovedet, inkl. Seikos egne press-release - som siger noget andet end release i 1969 for deres automat krono.
Jeg kan tilmed finde, at det burde være 6139 med et krono register, efterfulgt af 6138 i 1970 med to. Udvikling er naturligvis sket inden (patent ligger på 1969 - og sjældent udgiver man noget før patentet for ikke at blive løbet over ende)
Mon du ved, eller har du så tæt kontakt ind i Seiko at du kunne spørge dem?
Jeg kan læse:
The Seiko 6139. The 6139 was a 1 register chrono, with a 30 minute totalisor, it was patended early ’69.
It’s successor the 6138 came out a year later in 1970
The 6138 was the successor of the 6139 automatic chronograph movement. The 6138 was technical at least equal to his Swiss counterparts. There were two versions of the 6138: The 6138A introduced in 1970 had 21 jewels, and the 6138B introduced in the same year with 23 jewels.
Both got a column wheel that regulates the chrono functions, and a vertical clutch mechanism for the engagement. It’s measures are a diameter of 27,4mm and a height of 7,9mm. The "speed" is 21.600 a/H.
The 1638 is a 2 register chrono. One counting up to 30 minutes, the other counting up to 12 hours. The chrono second-hand measures up to 1/5th of a second.
It further features a quick-set!! dual !! day/date indicator. Another goodie is that the movement can be handwound, something that I really miss on most other Seiko automatic movements.
Something that is lacking, and something that I had to get used to, is the fact that there is no moving second-hand indicating normal time. The only second-hand is that of the chrono. So with the chrono functions disabled there is nothing moving on the dial…….
og fra Seikos egne sider, flere press releases om emnet, blandt andet dette, også med 6139 som før 6138
Meeting the challenge of 4 technologies
Caliber 6139 (1969)
SEIKO Automatic Chronographs
Caliber 6139 was the world's first automatic chronograph
to use both a column wheel and a vertical clutch.
http://www.seikowatches.com/baselworld/2...seiko.html
Kan du bringe lys
vh
Der er så forskellige betragtninger om hvilke der var mest originale og levede længst, men skidt med det. Jeg kan ikke finde noget sted overhovedet, inkl. Seikos egne press-release - som siger noget andet end release i 1969 for deres automat krono.
Jeg kan tilmed finde, at det burde være 6139 med et krono register, efterfulgt af 6138 i 1970 med to. Udvikling er naturligvis sket inden (patent ligger på 1969 - og sjældent udgiver man noget før patentet for ikke at blive løbet over ende)
Mon du ved, eller har du så tæt kontakt ind i Seiko at du kunne spørge dem?
Jeg kan læse:
The Seiko 6139. The 6139 was a 1 register chrono, with a 30 minute totalisor, it was patended early ’69.
It’s successor the 6138 came out a year later in 1970
The 6138 was the successor of the 6139 automatic chronograph movement. The 6138 was technical at least equal to his Swiss counterparts. There were two versions of the 6138: The 6138A introduced in 1970 had 21 jewels, and the 6138B introduced in the same year with 23 jewels.
Both got a column wheel that regulates the chrono functions, and a vertical clutch mechanism for the engagement. It’s measures are a diameter of 27,4mm and a height of 7,9mm. The "speed" is 21.600 a/H.
The 1638 is a 2 register chrono. One counting up to 30 minutes, the other counting up to 12 hours. The chrono second-hand measures up to 1/5th of a second.
It further features a quick-set!! dual !! day/date indicator. Another goodie is that the movement can be handwound, something that I really miss on most other Seiko automatic movements.
Something that is lacking, and something that I had to get used to, is the fact that there is no moving second-hand indicating normal time. The only second-hand is that of the chrono. So with the chrono functions disabled there is nothing moving on the dial…….
og fra Seikos egne sider, flere press releases om emnet, blandt andet dette, også med 6139 som før 6138
Meeting the challenge of 4 technologies
Caliber 6139 (1969)
SEIKO Automatic Chronographs
Caliber 6139 was the world's first automatic chronograph
to use both a column wheel and a vertical clutch.
http://www.seikowatches.com/baselworld/2...seiko.html
Kan du bringe lys
vh
Mvh. John - Glad for ure og frisk på lidt iværksætterråd.
Besøg min blog med gode råd til iværksættere!
Besøg min blog om ure!
Besøg min blog med gode råd til iværksættere!
Besøg min blog om ure!
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