This is an earlier version of Citizen diver Citizen Super Jet Auto Dater Parawater 150m AUDS 51202 Y. This model number of SADS 51202 has a close relationship to the SADS-52801 unibody divers (with the additional outer bezel) both watches are with 39 jewels).
The Citizen Super Jet Auto Dater Parawater 150m reference SADS 51202-Y is a rare 1966 vintage diver from Japan’s early automatic era (without the usual outer black diving bezel).
Key Specifications
This model features a robust monobloc stainless steel case measuring 37.5mm across with nice 20mm lugs. It houses the iconic Caliber 1150 or 1161 “Jet” automatic movement with 39 jewels, hand-winding capability, and quick-set date via crown pull. Rated for 150m water resistance (Para 150m), it includes luminous trapezoidal markers, black dial, and a unique geared rotor design.
Collectibility and Value
Priced around $850-1000 USD on secondary markets, its unibody “X-case” design and high jewel count appeal to vintage enthusiasts. Servicing requires crystal removal due to the sealed back, preserving dive-ready integrity.
For this model, On the dial was printed text :
Citizen Super Jet
Auto Dater
39J,
Para150mwater,
3 stars within white rectangular
Similar Recommendations
• Citizen Super Crystal Date 52801-Y: Near-identical twin with 33-jewel Cal. 5410, 18mm lugs, and matching 150m rating—slimmer profile for daily wear.
• Citizen Jet Auto Dater 1120/1130 series: Earlier “Rookie” sibling with 17-27 jewels, more affordable entry to Jet rotors.
When looking at the watch, please note that there are several similar looking refences and these include another versions of Citizen Super Jet Auto Dater in 39 jewels as below (example from the internet). There is also versions with 33J with minor differences. One can actually collect a series of these Citizen Jet Auto Date Parawater 150m
EXAMPLE 1 :
Spear
Citizen Super Jet
Auto Dater
39J,
Para150mwater,
3 stars within silver rectangular
Markers are slimmer
Photos from the internet SADS 51202Y, Unibody X case design but markers are slimmer and longer plus has a spear on top dial (serial nos 60701561 from 1966)
EXAMPLE 2
Spear
Citizen Super Jet
Auto Dater
Citizen Super Jet
Auto Dater
33 J
Three Stars within white rectangular
Three Stars within white rectangular
CITIZEN Super Jet Auto Dater Parawater, black dial type 2, 1968.
https://chronographes.net/2018/03/17/citizen-super-jet-auto-dater-para-water-sads-51202-y/citizen-super-jet-noir-img-rakuten-01/
EXAMPLE 3
Spear
Citizen Super Jet
Auto Dater
Citizen Super Jet
Auto Dater
33 J
Three Stars (with NO rectangular)
Three Stars (with NO rectangular)
There is yet another example that looks similar from the net example 2 but with some small differences:
52801-Y 33 Jewels (serial 70401572 from 1967)
https://adventuresinamateurwatchfettling.com/2019/11/11/citizen-parawater-150m-part-ii/
Further readings :
https://adventuresinamateurwatchfettling.com/2019/11/09/citizen-parawater-150m/
https://adventuresinamateurwatchfettling.com/2019/11/11/citizen-parawater-150m-part-ii/
https://vintagecitizenwatches.com/
https://vintagecitizenwatches.com/tag/citizen-super-jet/
https://www.fratellowatches.com/the-vintage-citizen-super-crystal-date-super-jet-auto-dater/#gref
My Key collections of vintage Citizens divers now consists of the two:
1. Citizen Super Jet Auto Dater Parawater 150m AUDS 51202 Y from 1966
2. Citizen Crystal Date AUDS 52802 - Y OR-O 33 Jewels from 1968
Under my search lists consist of the followings :
3. Citizen Super Auto Dater, SADS 52801-Y (Diver Bezel, unibody)
4. Citizen Super Jet Auto Date , SADS 51202 -Y (No Diver Bezel, 39J, 3 stars)
5. Citizen Diver OR-O B52806 or 62-5370 (Diver Bezel, Mercedes hands)


















































