Seiko Cal. 7138 - 794

Seiko 7138-794

The 7138-794 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7138 caliber with 24j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-db3ce9d505d4]

Also known as: Bellmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
11.8mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
200m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1977

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