Sargent & Greenleaf S&G Model 6730-100 Mechanical Safe Lock Kit

I have a safe that uses this model of S&G lock. From the time I got the safe, the dial felt loose, like the mechanism had sloppy clearances. It also occasionally required 2 or 3 tries to get it open. I didn't think too much of it, since the safe is from the manufacturer's least expensive line, but recently it wouldn't open at all. After multiple tries using variations on the combination I found via web search, I finally got it open. Removal of the old lock mechanism and installation of the new one, including setting the combination, were easy, as other reviewers note, following the procedures in the S&G video on YouTube rather than the included printed ones. I was pleased to find that the new lock was much better made internally than the original one, despite the identical model number, with a number of nicely machined brass parts that were plastic in the old one. Consequently, the new lock feels like a combination safe lock should: solid, smooth, and precise, and it opens every time on the first try (assuming I don't muff the combination).

Product works well. Would use this vendor again

Is good. 👍

Every S&G lock I have has worked to expectation. I wouldn’t hesitate to buy it again.

The supplier is one of the big and highly reputable names in the locksmith industry. +1. The unit appeared new, however, it was definitely not an unopened "as shipped" product since the production date and lot number on the box (which was factory labeled for this product) did not match that on the lock. I received this product on 9/1/24, and the factory label on the lock indicated it was manufacturer in 7/24. The paint was barely dry on this thing - definitely new stock. I replaced a 28 year old LaGard electronic lock that was working perfectly on one of my ordnance lockers, however, the age of that unit made me want to swtich. The description is just plain wrong. First, the specification sheet mentions one 9V battery. Nope, this is an entirely mechanical lock with no battery. The description mentions this was tested against expert manipulation for 20 hours. Nope, at least not the industry standard testing. This is a group 2 lock. Manipulating ratings are: Group 2 - 15 minutes (by an expert, you are not going to be hit by this except in an Oceans 11 style job) Group 2M - 2 hours against expert manipulation Group I - 20 hours against expert manipulation Group IR - Same as group 1, but resistent to X-Ray analysis of the wheels. Reduced service life because wheel are some sort of plastic. The group 2 is the overwhelming most common safe lock, until you get into UL TL rated (TL15, TL30, etc.) safes that require a 2M. These are the kind of safes that generally cost over $10K and meet insurance industry requirements for jewelery stores. My install went easy, but had to reshape mounting holes on the dial ring because the mounting hole locations in the door were out of spec by 1/10 of an inch as there was more tolerance for the electronic lock mounting. This is NOT the fault of the lock.