Model reference
Seiko 21CRQS-400
ladies' calendar (カレンダーグループ) · catalogued in 1968
- Case
- PDP / SGP
- Jewels
- 21
- List price
- ¥7,000 (PDP·LB) / ¥7,000 (SGP·LB)

Identifiers
- Case–dial code
- 320-004
From the catalogue
- Case
- PDP / SGP
- Bracelet
- LB
- Jewels
- 21
- List price
- ¥7,000 (PDP·LB) / ¥7,000 (SGP·LB)
- Specs
- date
コーラスカレンダー (Chorus Calendar); クイックチェンジ (quick-set date)
Appears in
- 1968 Seiko JDM Catalog No.2p.37 · view page
- 1968 Seiko JDM Catalog No.2p.37 · 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.




