Seiko Turtle Mod — the SRP777 cushion-case donor | MedoMods
The "Turtle" gets its name from the cushion-shaped case that resembles a tortoise shell. The SRP777 and its colour variants are a modern classic and a rewarding donor base: rugged, water resistant to 200 m and backed by a growing parts supply for bezels, dials and inserts.
Specifications
- Case
- ca. 45 mm Kissenform, 316L Edelstahl
- Movement
- Seiko 4R36 (Day-Date, Hacking)
- Water resistance
- 200 m
- Crystal
- Hardlex (saphirfähig)
- Crown
- 4 Uhr, verschraubt
- Status
- Aktuell, neu erhältlich
Why the Seiko Turtle (SRP777) as a donor?
- Distinctive cushion case with strong visual identity.
- Current 4R36 with day-date, hacking and hand-winding.
- Solid 200 m WR and screw-down crown as a diver base.
- Growing aftermarket for bezels, inserts and dials.
Common builds
- Vintage-diver Turtle with sandwich dial and box sapphire
- Clean modern diver with a ceramic bezel
Find finished mods on this base here:
MedoMods is an independent maker and is not affiliated with or endorsed by Seiko, Rolex, Patek Philippe, Audemars Piguet or any other brands mentioned. Third-party model names are used descriptively (homage style) only.