Seiko Cal. 7091 - 827

Seiko 7091-827

The 7091-827 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7091 caliber with 36j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-d7f3bf40b484]

Also known as: Monster, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
9.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
36j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1981

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seikata-wm-d7f3bf40b484