B737 FLT CREW HAS UNSAFE GEAR INDICATION AND EXECUTES GAR. AFTER VISUALLY CHECKING THE GEAR AND RESETTING CIRCUIT BREAKERS; FLT CREW LANDS WITH 3800 POUNDS OF FUEL.

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APCHING OM; I WENT TO PUT GEAR DOWN ON CALL FROM FO AND GOT NO GEAR INDICATION AT ALL EXCEPT A SINGLE NOSE GEAR RED INDICATOR LIGHT. NO TRIPPED CIRCUIT BREAKERS NOTED ON ANY CIRCUIT BREAKER PANEL. FROM THE COCKPIT NOISE AND DRAG; IT SEEMED THAT AT LEAST SOME GEAR WERE DOWN. WE EXECUTED A GAR WITH TWR; RPTED WE HAD AN UNSAFE GEAR INDICATION AND ON THE GO THE TWR RPTED THAT THEY COULD SEE ALL 3 GEAR BEING DOWN. ON THE GAR; WENT TO PUT THE GEAR UP AND THE HANDLE WOULD NOT RAISE PAST THE OFF (CTR DETENT) POS. CLBED TO 6000 FT WITH TWR/APCH CTL; PUT THE GEAR HANDLE BACK TO THE DOWN POS; AND DIRECTED FO TO CONTINUE AS THE PF. FUEL APPROX 4500 LBS AT THIS POINT. MADE A CALL TO DISPATCH AT SAME TIME AS RAN THE GEAR UNSAFE CHKLIST. CHKLIST LED ME TO THE VERIFY GEAR DOWN/LOCKED VIA GEAR VIEWER PORT COCKPIT/CABIN. VERIFIED NOSE GEAR DOWN; DISCUSSED PROC WITH FO FOR ME TO GO BACK TO CABIN AND CHK VIEWER PORT. DECLARED MINIMUM FUEL WITH ATC. WENT TO BACK OF CABIN AND FOUND VIEWER PORT L SIDE CABIN THIRD WINDOW BACK WAS HARD TO FIND AS YELLOW TAB WAS SOMEWHAT HIDDEN BY CARPET AND PAX BAGS. REMOVED CARPET AND VIEWER PORT LID TO FIND MAIN GEAR DOWN/LOCKED. BACK IN COCKPIT; DIRECTED FO TO REQUEST IMMEDIATE VECTORS TO LNDG. TALKED TO DISPATCH ON DOWNWIND/BASE. THEY HAD GIVEN US A REF CIRCUIT BREAKERS TO RESET (LNDG GEAR INDICATION SYS/AIR-GND SENSOR CIRCUIT BREAKER). ONCE I RESET THAT ONE CIRCUIT BREAKER; THE NORMAL INDICATION FOR MAIN GEAR CAME (GREEN DOWN/NO RED) BUT THE NOSEWHEEL SHOWED NO GREEN AND A RED UNSAFE LIGHT. LNDG UNEVENTFUL WITH 3800 LBS. FO DID A SUPERB JOB FLYING AIRPLANE IN A TIME CONSTRAINED EMER WHILE I HANDLED CHKLIST AND COORD. TWR WAS A BIG HELP WITH THEIR COMMENTS ON GEAR LOOKING DOWN ON OUR GAR AS THE GEAR HANDLE WOULD NOT GO TO UP POS AND NO OTHER AURAL INDICATIONS. SUPPLEMENTAL INFO FROM ACN 782894: THE FEEL AND SOUND OF THE AIRPLANE SEEMED LIKE THE GEAR WAS EXTENDED; AND THE TWR INDICATED THAT THE GEAR WAS VISUALLY EXTENDED. I CONTINUED TO FLY THE AIRPLANE AS THE CAPT DID THE APPROPRIATE CHKLIST; INCLUDING VERIFICATION OF THE GEAR DOWN VIA THE GEAR VIEW PORTS; AND RESETTING THE APPROPRIATE CIRCUIT BREAKERS IN ACCORDANCE WITH MAINT. WHEN THE PROCS WERE COMPLETE; AND GEAR VERIFIED DOWN; WE REQUESTED VECTORS FOR AN APCH AND DECLARED MINIMUM FUEL (WE LANDED WITH 3.8). WE LANDED AND TAXIED TO THE GATE WITHOUT ANY ISSUES.