Seiko Cal. 5693 - 387

Seiko 5693-387

The 5693-387 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5693 caliber with 26j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-f71d05c4f538]

Also known as: Monster, Bellmatic

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
35mm
Case Thickness
14.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Black
Jewels
26j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1978

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