Waitlist $2,020 39mm
Serica
Ref. 5330
Automatic
38 mm
Sangin Instruments Hydra II
Sold out
$1,795
Sold out for months, with no restock pattern on record.
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What you'll get
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Sangin Instruments Hydra II is available again
About this Watch
A Dive watch, in a round stainless steel case, 38mm, with a black matte dial, sword hands and applied metal indices, powered by the Seiko NH35.
It is currently sold out and not available to buy. This reference is priced 26% over what comparable watches in its segment typically cost, placing it above the middle of that range. The 145 comparable dive watches tracked in this size and price class range from USD 1,008 to USD 1,996.
Diameter
38mm
Lug to lug
46mm
Between lugs
20mm
Thickness
13.5mm
Weight
123g
Movement Type
Automatic
Movement Name
Seiko NH35
Power reserve
41 hours
Water resistance
20 bar
Crystal Type
Sapphire
Crystal Description
domed sapphire with clear anti-reflective coating
Statistics
Currently sold out, with no clear restock pattern yet. Scarcity score: 78/100. Among tracked dive watches in this class, that score lands it in roughly the top 10%. The scarcity score here has moved down around 7 points across the past 179 days. It peaked near a score of 86 in May 2026.
Track for the next window
Measured · 6 restocks
No reliable restock cadence is established for this reference yet.
78
May 2026
Scarcity score · today
Scarcity scoreModeledBased on Time unavailable, Sell-out speed. Reference evidence · 416 days · 12 availability changes · high confidence78/1002
Compared with 144 active peers · Dive · 38 - 40mm · $1,000–$2,000
Scarcity rank (in its segment)Top 10%
DemandDerivedReference evidence · 416 days · qualified-interest sample · high confidenceStable
Sells out inDerivedReference evidence · 416 days · 6 sell-outs · high confidence~16 hours
Last buyableDerivedCalculated from recorded observations.~158 days ago
Price vs segment26% above segment median
Availability
12 availability changes recorded. Average in-stock window: 11 hours. Longest sold-out stretch: 170 days. Last restocked on 6/1/26.
Sold out
5 months straight
6/2/26
November 2025
Today
- Available
· for 13 hours
6/1/26
- Sold out
· for 2 days
5/30/26
- Available
· for 12 hours
5/30/26
- Sold out
· for 12 hours
5/29/26
- Available
· for 1 day
5/28/26
- Sold out
· for 7 days
5/22/26
- Available
· for 12 hours
5/21/26
- Sold out
· for 93 days
2/17/26
- Unknown
· for 3 hours
2/17/26
- Sold out
· for 9 hours
2/17/26
- Unknown
· for 6 hours
2/16/26
- Sold out
· for 3 hours
2/16/26
- Unknown
· for 3 hours
2/16/26
- Sold out
· for 4 days
2/12/26
- Unknown
· for 4 hours
2/11/26
- Sold out
· for 14 hours
2/11/26
- Unknown
· for 2 hours
2/11/26
- Sold out
· for 8 days
2/3/26
- Unknown
· for 2 hours
2/3/26
- Sold out
· for 2 hours
2/3/26
- Unknown
· for 1 hour
2/3/26
- Sold out
· for 12 days
1/22/26
- Unknown
· for 1 hour
1/22/26
- Sold out
· for 2 hours
1/22/26
- Unknown
· for 3 hours
1/22/26
- Sold out
· for 16 hours
1/21/26
- Unknown
· for 2 hours
1/21/26
- Sold out
· for 20 hours
1/20/26
- Unknown
· for 3 hours
1/20/26
- Sold out
· for 8 days
1/13/26
- Unknown
· for 5 hours
1/13/26
- Sold out
· for 17 days
12/27/25
- Unknown
· for 1 hour
12/26/25
- Sold out
· for 25 days
12/2/25
- Available
· for 3 hours
12/2/25
- Sold out
· for 21 hours
12/1/25
- Available
· for 3 hours
12/1/25
- Sold out
· for 15 days
11/16/25
- Unknown
· for 3 hours
11/16/25
Tracked since 9/16/25 (416 days).
Last confirmed:
Price
Currently priced at $1,795.00, up from $1,595.00 on 4/14/26.
$1,795.00 USD
9/13/26
January 2026
Today
- $1,795.00
9/13/26
- $1,595.00 → $1,795.00
+12.5%
4/14/26
- $1,595.00
1/30/26
Unchanged · 7 months
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