Isotope · Microbrand · United Kingdom
Isotope Goutte d'Eau (NH38)
- Seiko NH38A
- 40 mm × 13.4 mm
- Sapphire crystal
- 200 m water resistance
Where to buy
- IsotopeWorldwide
Movement
- Caliber
- Seiko NH38A
- Type
- Automatic
- Tier
- Entry
- Complications
- Time only
- Frequency
- 21,600 bph
- Power reserve
- 41 h
- Hacking
- Yes
- Accuracy (factory)
- -20 / +40 s/day
Case
- Diameter
- 40 mm
- Lug to lug
- 44 mm
- Thickness
- 13.4 mm
- Lug width
- 22 mm
- Material
- Steel (316L)
- Hardening
- —
- Water resistance
- 200 m
- Crown
- Screw-down
- Case back
- —
- Bezel
- Internal rotating, lumed
- Finishing
- Brushed
Crystal & dial
- Crystal
- Sapphire
- Shape
- —
- Anti-reflective
- Yes (side not stated)
- Lume
- Super-LumiNova BGW9
Bracelet & clasp
- Style
- —
- Links per row
- —
- Solid end links
- —
- Solid links
- Yes
- Link attachment
- —
- Taper
- —
- Quick release
- —
- Half links
- —
- Clasp
- —
- Micro-adjust
- —
- Diver extension
- Yes
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
| Variant | Configuration | Type | Price | USD | As of | Source |
|---|---|---|---|---|---|---|
| All | Seiko versions, 2020 launch price (then NH35A) | Msrp | 379 GBPincl. VAT | $505 | 2020-04-14 | link |
Variants
| Name | Configuration |
|---|---|
| Nordblad | solid etched caseback |
| Orange | exhibition caseback |
| Yellow | exhibition caseback |
| Red | exhibition caseback |
| Green | exhibition caseback |
About this entry
68% of key specs known. Missing: weight, hardening, bracelet links, end links, link attachment, clasp micro-adjust.
Isotope's first dive watch, a compressor-style case with an inner rotating bezel worked by a crown at 2 (four gaskets) and a screw-down time-setting crown at 4, designed with ice freediver Johanna Nordblad. Shared spec table: brushed 316L steel, "40mm X 44mm (with lugs)", height 12.7mm with the SW200 or 13.4mm with the Seiko, AR sapphire, screw-down caseback (exhibition on Orange, Yellow, Green and Red; solid and etched on the Nordblad special edition), Super-LumiNova BGW9 on hands, inner bezel and sandwich dial, 200m, 22mm brushed steel bracelet with an extension clasp for wearing over a wetsuit (the separately sold Goutte d'Eau bracelet has solid links and pins and a diver extension). The store listing sold 5 of its 14 options as this model (Nordblad (no date) NH38, Orange (no date) NH35a, Yellow, Red and Green (no date) NH38); the others are in the other Goutte d'Eau files, split by movement and date. Isotope's spec names the Japan-made Seiko NH38 (no date, 41h, -20/+40 s/day, Seiko's own figure). The Orange option is still labelled "NH35a", and the 2020 coverage (WatchGecko, Fifth Wrist) describes the Japanese versions as NH35A-powered with or without date, so early no-date pieces may have an NH35A with the date hidden; the NH38 named in the current text is recorded. WatchGecko's April 2020 launch article gives £379 for the Seiko versions, recorded with that caveat; Fratello's 2021 review of the green edition says the Seiko option cost about €150 less than the sub-€600 Sellita version. Each watch has an etched serial number. Every option was sold out and listed without a price on 2026-10-25; Isotope doesn't say the model is discontinued. Weight and crystal shape aren't published.
Last verified: 2026-10-25. Edit or correct this entry.
Sources
- Isotope, Goutte d'Eau Compressor Diver product page (specifications, 14 versions, sold out, no price shown) accessed 2026-10-25
- Isotope, Goutte d'Eau Stainless Steel Bracelet (solid links and pins, diver extension clasp, £248) accessed 2026-10-25
- WatchGecko, Introducing the Isotope Goutte d'Eau (April 2020; £379 Seiko, £519 Sellita; 13.4mm with Seiko) accessed 2026-10-25
- Fratello, Isotope Goutte d'Eau Compressor dive watch in green (2021 review; date or no date, Seiko or Sellita) accessed 2026-10-25
- Fifth Wrist, Owner Review: Isotope Goutte d'Eau Nordblad (44mm lug to lug, 22mm lugs, SW200-1 or NH35a) accessed 2026-10-25