Side by side · Thorn SHY027 vs T028

SHY027 39mm BB58 Vintage Diver Automatic Watch
or T028 37mm PT5000 Automatic Dive Watch (Black Dial)?

The SHY027 is the lower-priced Thorn diver with a familiar NH35 movement in a 39 mm case. The T028 is smaller at 37 mm and steps up to the PT5000; choose it for a more compact wrist presence and a better movement.

Shop at Thorn Watches · $164 with code
Shop at Thorn Watches · $194 with code

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Choose the SHY027 39mm BB58 Vintage Diver Automatic Watch for
  • Costs $30 less at its listed price
  • More wrist presence at 39 mm
  • Watch Ritual code SEBASTIANBASSOL tested: $164 before shipping
Read the full review
Choose the T028 37mm PT5000 Automatic Dive Watch (Black Dial) for
  • Smaller case for slimmer wrists: 37 mm vs 39 mm
  • Watch Ritual code SEBASTIANBASSOL tested: $194 before shipping
Read the full review

The specs, side by side.

SHY027 39mm BB58 Vintage Diver Automatic WatchT028 37mm PT5000 Automatic Dive Watch (Black Dial)
Listed price$169$199 at Thorn Watches
Case diameter39 mm37 mm
Thickness13 mm13.2 mm
Lug-to-lug45.5 mm46.6 mm
MovementJapanese NH35 automaticPT5000 automatic
Power reserveNot publishedNot published
Water resistance200 m200 m
CrystalSapphire with anti-reflective coatingSapphire crystal with anti-reflective coating
Strap / braceletStainless steel bracelet, 20 mm lug widthStainless-steel bracelet; seller also lists a bonus leather strap

Who should buy which.

The SHY027 39mm BB58 Vintage Diver Automatic Watch: A buyer looking for an affordable automatic diver with sapphire, a steel bracelet and a compact 39 mm case. Choose another watch if you want a verified in-stock purchase today, a slimmer case, or a published movement reserve.

The T028 37mm PT5000 Automatic Dive Watch (Black Dial): A buyer who wants a black-dial automatic diver in a vintage-leaning 37 mm case, with a warm bezel and an included alternate strap-and-bezel kit. Choose a thinner or shorter-span watch if you want a low-profile cuff fit; choose a model with formal dive certification if certification is a purchase requirement.

Before you order.

The 13 mm case is still thick beside its 39 mm diameter. Confirm the exact variant and dimensions against a watch you already wear before ordering.

A 37 mm diameter does not make this a flat-wearing watch: the 46.6 mm lug-to-lug span and 13.2 mm thickness deserve a fit check.

A few good questions.

Should I buy the Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch or the Thorn Watches T028 37mm PT5000 Automatic Dive Watch (Black Dial)?

The SHY027 is the lower-priced Thorn diver with a familiar NH35 movement in a 39 mm case. The T028 is smaller at 37 mm and steps up to the PT5000; choose it for a more compact wrist presence and a better movement.

Which is cheaper, the Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch or the Thorn Watches T028 37mm PT5000 Automatic Dive Watch (Black Dial)?

The Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch is listed at $169, against $199 for the Thorn Watches T028 37mm PT5000 Automatic Dive Watch (Black Dial), checked 2026-10-16.

Which is more water resistant, the Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch or the Thorn Watches T028 37mm PT5000 Automatic Dive Watch (Black Dial)?

Both are rated to 200 m.

Is there a discount code for the Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch or the Thorn Watches T028 37mm PT5000 Automatic Dive Watch (Black Dial)?

SEBASTIANBASSOL is our supplied code for $5 off at Thorn Watches; it lowered the Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch to $164 in our test. SEBASTIANBASSOL is our supplied code for $5 off at Thorn Watches; it lowered the Thorn Watches T028 37mm PT5000 Automatic Dive Watch (Black Dial) to $194 in our test.

More head-to-heads.

Specs: Thorn Watches official page (checked October 16, 2026) and THORN Watches product page (checked October 16, 2026). Prices are the listed prices at the store each shop button opens.