This is the 8305-5000 Seikomatic Calendar from the 1960's. The interesting dial, tonneau case, curved rectangular crystal and bubble date… | Instagram
![Does anyone have information about this vintage seiko [8305 0020]? I just won it from the auction.I have searched on internet but have nothing about this beautiful red dial. thanks in advance! : Does anyone have information about this vintage seiko [8305 0020]? I just won it from the auction.I have searched on internet but have nothing about this beautiful red dial. thanks in advance! :](https://preview.redd.it/does-anyone-have-information-about-this-vintage-seiko-8305-v0-nkhsmtnqv57b1.jpg?width=640&crop=smart&auto=webp&s=44caf1ecb68b29103233f1ff75df43635a079e42)
Does anyone have information about this vintage seiko [8305 0020]? I just won it from the auction.I have searched on internet but have nothing about this beautiful red dial. thanks in advance! :
![WTS] Seiko Diashock 8305-1010 Seikomatic-R, 30 Jewels Automatic, Twisted Lugs with Cross-Hair Sunburst Dial for sale for $235 (shipped) Offers are welcomed – WatchPatrol WTS] Seiko Diashock 8305-1010 Seikomatic-R, 30 Jewels Automatic, Twisted Lugs with Cross-Hair Sunburst Dial for sale for $235 (shipped) Offers are welcomed – WatchPatrol](https://s3.amazonaws.com/watchpatrol-storage/img/full/8ac9dab18b99d03b68b2c95b9b391ae37ea7788a.jpg)