Seiko Cal. 0770 - 399

Seiko 0770-399

The 0770-399 is a sought-after Quartz piece from Seiko's golden era. Powered by the 0770 caliber with 29j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-6e8c8291ab5c]

Also known as: Bellmatic

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
9.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Navy
Jewels
29j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1973

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