Skip to content

Spinnaker Dumas Automatic 300M Diver Wristwatch SP-5081

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

early 2020's

The Spinnaker Dumas reference SP-5081 is an automatic diver wristwatch dated by the source to the early 2020s. Built in an angular 44mm octagonal stainless steel case, the design incorporates a unidirectional rotating bezel with luminous markings, a screw-down crown, and a reported water resistance rating of 300 meters.

The blue dial features luminous baton hour indices, a framed date window at 3 o'clock, and an oversized orange minute hand alongside a white hour hand. The source reports that the piece is powered by a 24-jewel Japanese Seiko NH35 automatic movement and mounted on a stainless steel Milanese mesh bracelet.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Technical characteristics

Type
Diver's watch
Bracelet
Stainless steel Milanese mesh strap
Reference
SP-5081
Case Diameter
44mm
Place recorded
Japan
Movement Caliber
Seiko NH35 (SII/TMI NH35A)
Water Resistance
300 meters (30 ATM/1,017 feet)
Maker / attribution
Spinnaker

Design

Dial and Hands
The blue dial features applied baton hour markers reported by the seller to utilize Swiss SuperLuminova, accompanied by a white peripheral minute/second track and a date indicator at the 3 o'clock position. The Spinnaker name and logo are printed at the upper dial. Visual observation confirms an oversized bright orange minute hand paired with a white baton hour hand and a slender sweep seconds hand.
Visible features
• Octagonal stainless steel case with brushed facings and polished bevels • Blue dial with applied luminous baton hour markers and date window at 3 o'clock • Oversized bright orange sword/plongeur-style minute hand paired with a white baton hour hand • Calibrated dark dive bezel with luminous numerals and top triangle marker • Fitted with a stainless steel Milanese mesh bracelet
Reported Movement and Documentation
The seller reports the internal movement to be a Japanese automatic caliber Seiko NH35 (SII/TMI NH35A), listing 24 jewels, a sweep second hand, hacking seconds, a 41-hour power reserve, and an operating frequency of 21,600 vibrations per hour. The seller's table records the movement inscription as 'SPINNAKER 24 Jewels Japan Movement' and case back markings as 'SPINNAKER Automatic Movement ALL Stainless Steel Water Resistant 300M Sapphire SP-5081'. The vendor dates the watch to the 'early 2020's' and states that it comes complete with original box and papers. However, neither the movement, case back markings, box, nor papers are depicted in the single listing photograph.
Case Construction and Exterior Dimensions
The Spinnaker Dumas reference SP-5081 is built with an octagonal stainless steel case. According to the seller's measurements table, the case diameter is 44 mm (48.4 mm including the screw-down signed crown), with a lug-to-lug distance of 48 mm, a thickness of 15 mm, and a lug width of 22 mm. The bezel is described as a blue unidirectional turning bezel with luminous calibrations, protecting a sapphire crystal. The watch is fitted to an original stainless steel Milanese mesh strap. The vendor reports 300 meters of water resistance (30 ATM / 1,017 feet) and notes a display case back, though neither the case back nor internal mechanisms are pictured in the provided visual record.

Identification

Reference
SP-5081
Source note
Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.

Research required

  • Research required: Case back and internal Seiko NH35 movement are not shown in the provided photograph
  • Research required: Reported original box and papers are not visible in the image
Can you source one of these? Submit a reference