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SPECS:
GRAND SEIKO HI-BEAT 36000
Manufacturer: Morioka Seiko Instruments Inc. 61-1, Itabashi, Shizukuishi-cho, Iwate-gun, Iwate 020-0596, Japan
Reference number: SBGH001
Functions: Hours, minutes, seconds; date; stop-seconds function
Movement: In-house Caliber 9S85, automatic; 36,000 vph, 37 jewels, fine adjustment via index with eccentric screw, Diashock shock absorption, Spron 610 hairspring, bidirectional pawl winding, 55-hour power reserve; diameter = 28.4 mm, height = 5.9 mm
Case: Stainless steel, domed sapphire crystal is nonreflective on its underside, screwed-down window of sapphire in caseback; water resistant to 100 meters
Bracelet and clasp: Stainless-steel bracelet with single-folding clasp
Rate results (Deviation in seconds per 24 hours,when fully wound/after 24 hours):
Dial up -1.3 / -2.1
Dial down +1.5 / -0.4
Crown up -1.0 / -3.5
Crown down +1.0 / 0.0
Crown left -0.3 / -2.7
Greatest deviation of rate 2.8 / 3.5
Average deviation 0.0 / -1.7
Average amplitude:
Flat positions 318° / 288°
Hanging positions 284° / 267°
Dimensions: Diameter = 40.65 mm, height = 13.28 mm, weight = 151 g
Variations: With black dial; special editions in yellow gold, rose gold or white gold ($27,000)
Price: $7,800
SPECS:
ZENITH EL PRIMERO ESPADA 36,000 VPH
Manufacturer: Zenith International SA, Rue de Billodes 34-36, CH-2400 Le Locle, Switzerland
Reference number: 03.2170.4650/01.M2170
Functions: Hours, minutes, center-mounted seconds hand; date
Movement: In-house El Primero 4650B, automatic; 36,000 vph, 22 jewels, fine adjustment via eccentric screws, Kif shock absorption, bidirectional winding, Nivarox hairspring, Glucydur balance, 50-hour power reserve; diameter = 30.0 mm, height = 5.58 mm
Case: Stainless steel, domed sapphire crystal with nonreflective coating, caseback with screwed-down sapphire window; water resistant to 100 meters
Bracelet and clasp: Stainless-steel bracelet with double-folding clasp
Rate results (Deviation in seconds per 24 hours, when fully wound/after 24 hours):
Dial up +5.0 / +4.8
Dial down +2.8 / +2.4
Crown up +3.0 / +0.5
Crown down +6.0 / +7.2
Crown left +3.9 / +1.7
Greatest deviation of rate 3.2 / 6.7
Average deviation +4.1 / +3.3
Average amplitude:
Flat positions 282° / 257°
Hanging positions 250° / 229°
Dimensions: Diameter = 40.37 mm, height = 11.96 mm, weight = 141 g
Variations: With black, white or brown sunray or mother-of-pearl dial, rose-gold case on strap, steel and gold case and bracelet, rose-gold case and bracelet, set with diamonds ($6,700 – $29,100)
Price: $6,700
SEIKO:
Pros
+ Modern manufacture caliber
+ Good rates
+ High-quality craftsmanship
Cons
– Poor nighttime legibility
– Comparatively high price
ZENITH:
Pros
+ Manufacture caliber
+ Good rates
+ Very good legibility day and night
+ High-quality craftsmanship
Cons
– No stop-seconds function
– Low amplitudes
– Too much play in the hands