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SEIKO 7002 SCUBA DIVER'S SERIES 1988 thru 1996
7002-7000 (black bezel)
7002-7001 (black bezel)
7002-7009 (black bezel) US market
7002-700A (blue and red bezel)
7002-700J (Japan-only version, with "17 Jewels" on dial, blue and red bezel)
7002-7020 (200m model with a steel Tag-like bezel design similar to the current SKX171 model)
7002-7039 (200m model, in black as well as blue-and-red bezels)
Seiko caliber 7002A
automatic movement with 17 jewels found in many pre-SKX Seiko divers. This caliber was introduced in the late 1980s after Seiko started to phase out the production of the caliber 6309 around 1988. Seiko produced the 7002 until 1996 when we all meet the SKX series.
The Caliber 7002 can be regulated to achieve excellent timekeeping, with some users reporting it can be made to perform better than +/- 5 seconds per day. This indicates that with proper adjustment, the watch can maintain a high level of accuracy which involves adjusting its internal components to ensure accurate timekeeping, and this process can be complex. Factors such as balance wheel, escapement, and hairspring can influence the accuracy of a watch, and understanding these elements is crucial for successful regulation.
It may still experience deviations in timekeeping over time. Basic regulations can be attempted by enthusiasts, but for more intricate issues, it is advisable to seek professional assistance from a qualified watchmaker.
Caliber 7002, 7005 7006 and 7009 are almost identical, sharing many parts in common. The main difference is in thickness, day/date features and jewelling. The 7005 is date only, the 7009 is a day/date and the 7002A is date only and has a different auto winding weight. Since this particular movement is a “date only”, then one concludes it started life as a 7005A, to be transfomed at a later date by whatever parts were to hand at the time.
The dial of the 7002 is considered one of the most symmetrical and modest of the Seiko divers, with a base matte color of either black or a grayish blue. The dial features a long double triangle at 12, long rectangular hour indices for the 6 and 9, and square hour indices for the rest of the hours. A simple date window is cut into the dial at 3'O clock.
SEIKO 7002 7009 A1 SCUBA DIVER'S version
POROUS SURFACE OF LUME -
it's surface should never look like it was painted on having a solid surface or layer no matter the condition of the dial. Be careful of redone dials
SEIKO 7002 SCUBA DIVER'S SERIES 1988 thru 1996
7002-7000 (black bezel)
7002-7001 (black bezel)
7002-7009 (black bezel) US market
7002-700A (blue and red bezel)
7002-700J (Japan-only version, with "17 Jewels" on dial, blue and red bezel)
7002-7020 (200m model with a steel Tag-like bezel design similar to the current SKX171 model)
7002-7039 (200m model, in black as well as blue-and-red bezels)
Seiko caliber 7002A
automatic movement with 17 jewels found in many pre-SKX Seiko divers. This caliber was introduced in the late 1980s after Seiko started to phase out the production of the caliber 6309 around 1988. Seiko produced the 7002 until 1996 when we all meet the SKX series.
The Caliber 7002 can be regulated to achieve excellent timekeeping, with some users reporting it can be made to perform better than +/- 5 seconds per day. This indicates that with proper adjustment, the watch can maintain a high level of accuracy which involves adjusting its internal components to ensure accurate timekeeping, and this process can be complex. Factors such as balance wheel, escapement, and hairspring can influence the accuracy of a watch, and understanding these elements is crucial for successful regulation.
It may still experience deviations in timekeeping over time. Basic regulations can be attempted by enthusiasts, but for more intricate issues, it is advisable to seek professional assistance from a qualified watchmaker.
Power Reserve - the movement should run for approximately 40 hours, up to 43 hours continuously.
Caliber 7002, 7005 7006 and 7009 are almost identical, sharing many parts in common. The main difference is in thickness, day/date features and jewelling. The 7005 is date only, the 7009 is a day/date and the 7002A is date only and has a different auto winding weight. Since this particular movement is a “date only”, then one concludes it started life as a 7005A, to be transfomed at a later date by whatever parts were to hand at the time.
The dial of the 7002 is considered one of the most symmetrical and modest of the Seiko divers, with a base matte color of either black or a grayish blue. The dial features a long double triangle at 12, long rectangular hour indices for the 6 and 9, and square hour indices for the rest of the hours. A simple date window is cut into the dial at 3'O clock.
SEIKO 7002 7009 A1 SCUBA DIVER'S version
POROUS SURFACE OF LUME -
it's surface should never look like it was painted on having a solid surface or layer no matter the condition of the dial. Be careful of redone dials
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