Side by side · Citizen Promaster NY0086 vs Thorn SHY027

Promaster Automatic Blue Dial (NY0086-16L)
or SHY027 39mm BB58 Vintage Diver Automatic Watch?

Both are 200 m automatic divers. Choose the Thorn SHY027 at $169 for sapphire and a compact 39 mm case; choose the Citizen NY0086 at $279.90 for Citizen’s day-date Caliber 8204 and a rubber strap, with a mineral crystal.

Shop at Watches of America · $251.91 with code
Shop at Thorn Watches · $164 with code

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Choose the Promaster Automatic Blue Dial (NY0086-16L) for
  • Slimmer: 12 mm vs 13 mm
  • More wrist presence at 42 mm
  • Watch Ritual code SEBASTIANBASSOL tested: $251.91 before shipping
Read the full review
Choose the SHY027 39mm BB58 Vintage Diver Automatic Watch for
  • Costs $110.90 less at its listed price
  • Sapphire crystal
  • Smaller case for slimmer wrists: 39 mm vs 42 mm
  • Watch Ritual code SEBASTIANBASSOL tested: $164 before shipping
Read the full review

The specs, side by side.

Promaster Automatic Blue Dial (NY0086-16L)SHY027 39mm BB58 Vintage Diver Automatic Watch
Listed price$279.90 at Watches of America$169
Case diameter42 mm39 mm
Thickness12 mm13 mm
Lug-to-lugNot published45.5 mm
MovementCitizen Cal. 8204 automatic with day-dateJapanese NH35 automatic
Power reserve42 hoursNot published
Water resistance200 m200 m
CrystalCrystal glass (mineral)Sapphire with anti-reflective coating
Strap / braceletBlack urethane rubber strap with pin buckleStainless steel bracelet, 20 mm lug width

Who should buy which.

The Promaster Automatic Blue Dial (NY0086-16L): A buyer who wants an automatic blue-dial Promaster with day-date convenience, a rubber strap and a manufacturer-listed 200 m / ISO 6425 dive specification. Choose a smaller watch if 42 mm is too wide for your wrist, sapphire if you want a harder crystal, or a solar model if avoiding periodic mechanical servicing is the priority.

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.

Before you order.

At 42 mm, this is a full-size diver, and Citizen does not publish lug-to-lug on the official regional page. The retailer lists 12 mm thickness; Citizen specifies crystal glass rather than sapphire. Check the span and crystal material against your priorities before ordering.

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 few good questions.

Should I buy the Citizen Promaster Automatic Blue Dial (NY0086-16L) or the Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch?

Both are 200 m automatic divers. Choose the Thorn SHY027 at $169 for sapphire and a compact 39 mm case; choose the Citizen NY0086 at $279.90 for Citizen’s day-date Caliber 8204 and a rubber strap, with a mineral crystal.

Which is cheaper, the Citizen Promaster Automatic Blue Dial (NY0086-16L) or the Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch?

The Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch is listed at $169, against $279.90 for the Citizen Promaster Automatic Blue Dial (NY0086-16L), checked 2026-10-16.

Which is more water resistant, the Citizen Promaster Automatic Blue Dial (NY0086-16L) or the Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch?

Both are rated to 200 m.

Is there a discount code for the Citizen Promaster Automatic Blue Dial (NY0086-16L) or the Thorn Watches SHY027 39mm BB58 Vintage Diver Automatic Watch?

SEBASTIANBASSOL is our supplied code for 10% off at Watches of America; it lowered the Citizen Promaster Automatic Blue Dial (NY0086-16L) to $251.91 in our test. 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.

More head-to-heads.

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