Hangzhou 2553A
Factory specs
- Caliber
- 2553A
- Made in
- China
- Frequency
- —
- Power reserve
- —
- Jewels
- —
- Hacking
- —
- Hand winding
- —
- Accuracy
- —
- Diameter
- —
- Height
- —
- Functions
- Hours, Minutes, Seconds, Day, Date
- Clone of
- Seiko NH36A
- Same family
- Hangzhou 2565A
Chinese day-date automatic sold as a drop-in replacement for the Seiko NH36A. No factory spec sheet was found: jewel count, beat rate, power reserve, hacking and dimensions are unconfirmed, so they are left blank. Parts sellers list it as the counterpart of the NH36A ("NH36A Dual Calendar (Hangzhou 2553A)"); Heimdallr's official store names it in the spec block of its day-date automatics (SKX007 V2K20, Sharkey Ocean Monster, Titanium Mini Turtle), some of which still carry "NH36" in the product title or URL. The SKX007 listing offers English/Japanese day wheels. Tier "entry" per the guide's row for unbranded Chinese automatics.
Watches with the Hangzhou 2553A
| Watch | Price from | Movement | Dia. mm | Thick mm | Crystal | Micro-adjust |
|---|---|---|---|---|---|---|
Heimdallr SKX007 V2K20 |
$135 | Hangzhou 2553A | 42 | 13 | Sapphire | — |
Heimdallr Sharkey Ocean Monster |
$139 | Hangzhou 2553A | 41.6 | 13.6 | Sapphire | — |
Heimdallr Sharkey Mini Turtle |
$149 | Hangzhou 2553A | — | 13.3 | Sapphire | — |
Heimdallr Titanium Mini Turtle |
$199 | Hangzhou 2553A | — | 13 | Sapphire | no bracelet |



