I'm also a Dave C., but I know you're referring to our moderator, Dave Coatsworth! My earliest examples of pat regs with double sunk dials are Stuart models in the 61,xxx number range. And the next one I have is a grade 101 private label in the 215,xxx range. But the problem is that we...
I'd imagine that the "adj 2 posn" designation for an HS3 Deck Watch was a minimum number of adjustments, and maybe the lowest number of adjustments from among the approved HS3 deck watch suppliers? I've seen WWII era Elgin grade 581's, with 21(22) jewels and adjusted to 5 positions, that were...
1260157 - silver case with no markings to rear, winding indicator is present
1260642 - gimbaled, winding indicator is present
1260911 - gimbaled, winding indicator is present (previously reported)
On closer inspection the contract order number marked on the case for sn 40470553 has an additional numeral and the full case makings are:
SPEC. NO. AN-GG-W-108
SER. NO. AC42-4781
MFRS. PART NO. 1786
ORD. NO. W535AC-28071
And additionally, sn 40470707 is also in an A-13...
I can't vouch for how correct these dials are, but here's a list of convertible movements that I have observation notes on:
SN Date Size Jewels Finish Adj Reg Grade Dial Type Dial nums Dial attr
00,600,971 1878 16 15 G ADJ E_Std 49 S BR...
None of the three I show have Bigelow dials ... I was responding to the interesting discussion about the 12s model 1894 side by side comparisons made here, and an issue with the pics being available, but if the moderator wants to move or copy my post to a 12s Riverside thread that's ok with me! :)