Seiko Cal. 5665 - 491

Seiko 5665-491

The 5665-491 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5665 caliber with 27j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-35fb2605dc78]

Also known as: Bellmatic

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
13.5mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Champagne
Jewels
27j
Frequency
28,800 bph
Power Reserve
54 hours
Year
1987

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