Hi Alembic people. I wonder if someone could please help me with this question: I used to own an 89 MK bass, and i miss the bridge string spacing on that bass, so I'm thinking about custom building a new bridge for my 68 P-bass. Could someone please tell me the bridge string spacing on an 89 MK? Thanks/Andreas

Welcome to the board Pandi.
 
Since Alembic allows customers to choose the width of the nut and narrow/standard/wide spacing, it is hard to say.
 
Do you have the serial #?  Specs may be availible.

Isn't it usually 16.5mm on a stock MK?

Keep in mind that our standard bridge spacing in not center to center as many others make their bridges. A 1989 MK would likely have a classic tape fingerboard, and that's 1.75 x 2.25. This makes the spaces between the strings at the bridge about .61 inches or about 15.5mm.  
 
If you're trying to compare against center to center spacing, it computes to about:
string center 1 to 2 = 0.665   (16.891)
string center 2 to 3 = 0.6825   (17.3355)
string center 3 to 4 = 0.7025   (17.8435)

Thanks Mica!!  I was about to dig my four string out of the closet and measure it, but I can't pull myself away from the laptop.

I had written a lengthy response myself with a bunch of the data that came up when my bass was under design/construction, but Mica's post hit before I finished so I canned it.
 
Of course, the easiest way to know what the specs on a particular instrument are involves the use of a caliper and direct measurement.  Alembic basses, being hand made, may not 100% match even the specs under which they were intended to be built, custom or not.  Is accuracy to four decimal places even possible?
 
As a side note, I believe Mica's numbers are based on a 45-65-85-105 set of strings.  I'm not sure if it would matter, but the spacing would be less symmetrical if one were to switch to a less linear set of strings, say Jazz Flats at 43-56-70-100.

pandi...what is wrong with the standard bridge?? it may devalue the bass if you put something else on. If the bridge is broken a better alternative would be an original fender replacement or a BADASS II as the screw holes line up perfectly on this unit.

Won't your fretboard look really wide outside the margin of the strings if you add an Alembic style bridge?

For a vintage Fender P bass it just has simply GOT to be the Leo Quan Bad-ass 11 - nothing else compares on a Fender imho!
 
John.

The side to side spacing is for our .045 - .065 - .080 -.105 set of strings unless you order with something different. Note that the figures I provided for the centers are computed.

Thanks for all the answers!
 
Much appreciated Mica, thanks!
 
I have quite small hands, so my idea is to build a copy of a vintage Fender bridge, with Alembic string spacing, to get the same right hand feel and flow.

pandi..when you mean build a bridge, are you going to fabricate it from scratch??
If you want adjustable string spacing, Gotoh do side adjustment as well as height and intonation.
Seems like a lot of work when there are plenty of standard bridges that will do the same