Model reference
Seiko 51MW-020
other automatics (その他の自動巻グループ) · catalogued in 1968
- Case
- SS / SGP
- Jewels
- 33
- List price
- ¥17,000 (SS·WP·MB) / ¥19,500 (SGP·WP·MB)

Identifiers
- Case–dial code
- 801-801
From the catalogue
- Case
- SS / SGP
- Bracelet
- MB
- Jewels
- 33
- Water resist.
- WP
- List price
- ¥17,000 (SS·WP·MB) / ¥19,500 (SGP·WP·MB)
- Specs
- automatic · hacking seconds · instant day-date change
51セイコーマチック ウィークデーター (51 Seikomatic Weekdater; dial: Seikomatic-P); 自動巻・秒針規正装置・瞬間日送装置付; 021 = same case/dial code, boxed 和 = day shown in Japanese characters (footnote: 和印は曜日が和文字です)
Appears in
- 1968 Seiko JDM Catalog No.2p.18 · view page
- Seiko JDM Catalog No.1p.14 · view page
Elsewhere at Tiny Hour Tales
Seiko pieces in the shop now
Not this reference or caliber — simply the Seiko-family watches available today.




