What is the difference between Rolex caliber 3035 and 3135?
The Rolex caliber 3035 was introduced in 1977 as what many refer to as a high-beat caliber 1575. Ten years later, in 1988, they put out the caliber 3135 with a few upgrades. It is still used today. Any other differences? Please comment below.
Rolex Caliber 3035 | Rolex Caliber 3135 | |
Orgin | Swiss made | Swiss made |
In-House? | Yes | Yes |
Year Introduced | 1977 | 1988 |
Replaces Caliber | Rolex 1575 | Rolex 3035 |
Jewels | 27 | 31 |
Power Reserve | 42 Hours | 50 Hours |
Beats Per Hour | 28,800 vph | 28,800 vph |
Date? | Yes | Yes |
Hacking? | Yes | Yes |
Crown | Counterclockwise to set time | Clockwise to set time |
Regulation | Microstella | Microstella |
Balance Spring | Free sprung Breguet | Overcoil Breguet with Kif shock |
Balance Cock Stud | Hairspring glued on | Hairspring laser welded on |
COSC? | Yes and No | Yes |
Models | Date, Datejust, Submariner, Sea-Dweller | Date, Datejust, Submariner, Sea-Dweller, DeepSea |
Caliber Commentary:
Tools posted this in the Rolex Forum:
The 3035 is almost identical to the 3135 in size and basic composition…..
The 3135 movement picked up a full balance bridge, larger balance wheel and went from 27 to 31 jewels.. It’s basically just an evolution… Much like it will be when they all get fitted with the Parachrom hairspring and the Paraflex shock system…. Identical again, except for the new parts…
Padi56 on TRF makes an interesting note about the hairsprings:
…And the hairspring in the 3035 is glued on to the balance cock stud now they are laser welded on 3135.
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