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Seiko Prospex Sea Automatic Diver Green Dial Silver Steel Strap Watch For Men - SPB187J1
Seiko dive watches have had a bit of a renaissance in recent years. If you’re a regular around here you’ve no doubt noticed. Gone are the SKX models that likely got many of us into the hobby, leaving us with clear (ish) segments of divers from the Seiko 5 Sport to high end SLA models.
Oh, and there’s a lot in between. The SRPs, SPBs, and SLAs can be difficult to differentiate at times, but Seiko is paving the way for a more robust future for their dive watches, by way of resurrecting their past. We’ve seen this done to great effect with watches like the SPB149 and SPB153, and their latest, a descendent of the 6159 lineage, the SPB187.
- Automatic with Manual Winding Function
- 6R35 Caliber
- Silver Stainless Steel Case and Bracelet
- Blue Dial and Black Bezel
- Luminescent Hands, Indexes and Bezel
- Sapphire Crystal
- Screw Case Back
- Screw Down Crown
- Stop Second Hand Function
- Three-fold Clasp with Secure Lock and Push Button Release with Extender
- Unidirectional Rotating Bezel
- 24 Jewels
- 70 Hours Power Reserve
- -15 to +25 seconds per day Accuracy
- Magnetic Resistance
- 21,600 Vibrations per hour
- 200 m Water Resistant for Air Diving
- 48.8 mm × 42 mm × 12.5 mm
- 186 g
Driving system | Automatic with manual winding mechanism |
---|---|
Caliber Number | 6R35 |
Case material | Stainless steel with super-hard coating |
Case back | Solid |
Band type | Bracelet |
Band material | Stainless steel |
Band color | Silver tone |
Clasp | Three fold clasp with push button safety |
Dial color | Blue |
Glass material | Sapphire crystal |
Glass coating | Anti-reflective coating on inner surface |
Hands | Luminous grey and silver tone (hour, minute) with gold tone and white red colored tipped second hand |
Dial markers | Silver tone dots with indexes at 6, 9 and double trapezoid indexes at 12 o’clock |
Second markers | Minutes markers around the outer rim |
Lumi Brite | Hands, indexes and bezel |
Bezel | Unidirectional rotating stainless steel black colored with arabic numerals minutes markers per 10 minutes scale |
Crown | Screw down at 4 o’clock position |
Calendar | Date display at 3 o’clock position |
Function | Date, hour, minute, stop second hand |
Accuracy | -15 to +25 seconds per day (when static) at normal temperature range (5°C and 35°C) |
Vibration | 21,600 vibrations per hour |
Drive duration | Power reserve 70 hours |
Magnetic reluctance | Magnetic resistance 4,800 A/m |
Water resistance | 200 m water resistance suitable for air diving |
Size | Length : 48.8 mm x Diameter : 42 mm x Thickness : 12.5 mm |
Weight | 186 g |