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 group images below show mainly PUW based Gruens; see the caption under each image for more information.

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

Chrome and Stainless Steel cased Gruens with ESA 9150 and PUW 907 movements.	Chrome and Stainless Steel cased Gruens with PUW 907 (top row) and ESA 9150 (bottom row) movements.	Gold plated cased Gruens with PUW movements; front view.
Gold plated cased Gruens with PUW movements; case back view.	Gold plated cased Gruens with PUW and ESA movements; front view.	Gold plated cased Gruens with PUW 2508 (top left), ESA 9154 (top middle) and PUW 907 (rest).

PUW 907 movement from one of the Gruens; it is a moving coil, contact controlled movement. The first document PUW electric movement is the PUW 1000, so the PUW 907 is a bit of a mystery although it looks virtually identical to the PUW 1000.

PUW 2508 movement from one of the Gruens. PUW 2508 is a transistor (IC) controlled, balance wheel movement.

PUW 2508 movement from one of the Gruens. PUW 2508 is a transistor (IC) controlled, balance wheel movement.

Now a real rarity! The Gruen Electronic Jump Hour watch! One of the very few watches 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.