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Seiko Prospex Sea 1968 Heritage Diver's GMTvsSpinnaker Piccard

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko Prospex Sea 1968 Heritage Diver's GMT

The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and comfortable wearability, offering good value for its price point. Owners and reviewers highlight the attractive silver/white sunray dial, blue ceramic bezel, and the premium feel of the improved bracelet clasp with excellent micro-adjustment. The Caliber 6R54 movement provides a 72-hour power reserve, and real-world accuracy often exceeds its stated range of +25 to -15 seconds per day, with some owners reporting figures around +3 to +5 seconds per day. However, the caller-style GMT functionality is a point of contention for some, who find the GMT scale difficult to read and prefer a flyer GMT at this price. Some also find the crown position at 4 o'clock undesirable, and a few note a lack of dial contrast or illegibility of the inner bezel.

Spinnaker Piccard

Owners widely praise the Spinnaker Piccard for its comfortable wear, excellent readability, and bold, vintage-inspired design that redefines dive watch aesthetics. However, some owners view the Spinnaker Piccard as a specialty novelty watch, describing it as huge and heavy with a large crystal that hinders legibility, making it an acquired taste. On balance, owners find the Spinnaker Piccard to be a unique dive watch with a distinctive design, though its substantial size and crystal may not suit all wearers.

At a glance

13 of 29 specs differ
Diameter
Prospex Sea 1968 Heritage Diver's GMT42mm
Piccard45mm
Power Reserve
Prospex Sea 1968 Heritage Diver's GMT72h
Piccard
Water Resistance
Prospex Sea 1968 Heritage Diver's GMT200m
Piccard550m
MSRP
Prospex Sea 1968 Heritage Diver's GMT$1,500
Piccard$550

Full specifications

Case

6 specs
Diameter
42mm
45mm
Thickness
12.9mm
21mm
Lug-to-Lug
48.6mm
52mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
550m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Dial Color
Lemon Yellow
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
6R54
Seiko NH35
Power Reserve
72h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$1,500
$550
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