Tsao Baltimore · Microbrand · United States
Tsao Baltimore Constellation Chrono-Diver
- Seiko VK64A
- 41 mm × 15 mm
- Sapphire crystal
- 200 m water resistance
Movement
- Caliber
- Seiko VK64A
- Type
- Meca-quartz
- Tier
- Mid
- Complications
- Date, Chronograph
- Frequency
- n/a
- Power reserve
- n/a
- Hacking
- n/a
- Accuracy (factory)
- -20 / +20 s/month
Case
- Diameter
- 41 mm
- Lug to lug
- 48 mm
- Thickness
- 15 mm
- Lug width
- 20 mm
- Material
- Steel (316L)
- Hardening
- —
- Water resistance
- 200 m
- Crown
- Screw-down
- Case back
- Solid, screw-down
- Bezel
- 120 clicks, 12-hour, sapphire insert, lumed
- Finishing
- Brushed with polished edges
Crystal & dial
- Crystal
- Sapphire
- Shape
- Double-domed
- Anti-reflective
- Yes (side not stated)
- Lume
- Super-LumiNova C3
Bracelet & clasp
- Style
- —
- Links per row
- —
- Solid end links
- —
- Solid links
- —
- Link attachment
- —
- Taper
- 20 → 18 mm
- Quick release
- Yes
- Half links
- —
- Clasp
- Push-button fold-over
- Micro-adjust
- —
- Diver extension
- Yes
Straps
- Strap 1
- Sailcloth, Sailcloth-style strap included with the watch
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
| Variant | Configuration | Type | Price | USD | As of | Source |
|---|---|---|---|---|---|---|
| All | — | Msrp | 450 USD | $450 | 2026-10-24 | link |
Variants
| Name | Dial |
|---|---|
| Panda | white, fully lumed, with black subdials |
| Reverse Panda | matte black with white subdials |
| Sea Green | green with lumed chapter ring and subdials |
| Mystic Blue | blue-teal with lumed chapter ring and subdials |
| Midnight Grey | grey with Old Radium Super-LumiNova indices and C3 subdials |
About this entry
68% of key specs known. Missing: weight, hardening, bracelet links, end links, link attachment, clasp micro-adjust.
Meca-quartz chronograph diver named after the USS Constellation in Baltimore's Inner Harbor. Each colourway has its own listing and run: Panda (fully lumed dial, "will show more off-white/cream"), Mystic Blue and Sea Green 200 pieces each, Reverse Panda 100, and the later Midnight Grey 50. Spec table: Seiko VK64 meca-quartz, 316L steel brushed with polished edges, 41mm, 20mm lugs, 48mm lug-to-lug, steel bracelet with quick-release pins tapering to 18mm and a clasp with dive extension, engraved screw-down caseback, double-domed sapphire with AR coating, 200m, lumed screw-down crown, "Domed Sapphire, 12 Hour, 120 click rotating, C3 lume" bezel (direction not stated); a sailcloth-style strap is included. The Sea Green and Mystic Blue listings repeat the Midnight Grey's dial line, so the dial colours here come from their descriptions and photos. Thickness (15mm, caseback to the top of the crystal) is from The Time Bum's pre-release review, which also describes the clasp as a push-button extension clasp with micro-adjustment (type not described) and gives the launch price of $450 ($350 on pre-order, February 2020). Every version was sold out on 2026-10-25. Weight isn't published.
Last verified: 2026-10-25. Edit or correct this entry.
Sources
- Tsao Baltimore, Constellation Chrono-Diver - Panda product page accessed 2026-10-25
- Tsao Baltimore, Constellation Chrono-Diver - Reverse Panda product page accessed 2026-10-25
- Tsao Baltimore, Constellation Chrono-Diver - Sea Green product page accessed 2026-10-25
- Tsao Baltimore, Constellation Chrono-Diver - Mystic Blue product page accessed 2026-10-25
- Tsao Baltimore, Constellation Chrono-Diver - Midnight Grey product page accessed 2026-10-25
- The Time Bum, Tsao Baltimore Constellation Chrono-Diver (pre-release review, February 2020) accessed 2026-10-25