Gruen made some fantastic watches in the 1930s, 1940s and 1950s. Their Curvex range was a work of art! But like a lot of companies in the late 1960's / early 1970's, they seem to have lost their way and jumped on the fashion bandwagon. To read about this interesting company, try this excellent site.

The first four images below show two PUW based Gruens; the first house an electric the PUW 1001 movement while the second one has the rare electronic PUW 2502 movement.

Gruen Electric Diver with stainless steel case and snap-on back; 39mm diamter inclcuding crown; Porta PUW 1001 movement; 1961

Gruen Electric Diver with stainless steel case and snap-on back; 39mm diamter inclcuding crown; Porta PUW 1001 movement; 1961

Gruen Electronic with gold plated case.

Gruen Electronic PUW 2502

Next, we have a real rarity! The Gruen Electronic Jump Hour watch! Probably the only watch to have used the ESA 9159 movement...and very hard to find today. This one is in exceptional condition.

Gruen Electronic Jump Hour with ESA 9159; chromed case; stainless steel back; 42mm diameter including crown; 1975	Gruen Electronic Jump Hour with ESA 9159; chromed case; stainless steel back; 42mm diameter including crown; 1975	Fairly standand Swissonic type stainless steel back.	With the wheel complications instead of hands, this is a thick watch at 18mm.	Wears well on the wrist.	Cats love them!
From the balance side, identical to a standard ESA 9158 apart from the stamped "ESA 9159" in the plate.	Dial side is very different; you can make out the calander wheel on the left hand side then an additional brass plate to support the minute and hour wheels.	NOS ESA 9159 movements can still be found.	NOS ESA 9159 movements can still be found.	Side view of ESA 9159 complications.	Side view of ESA 9159 complications.