Seiko Cal. 7183 - 398

Seiko 7183-398

The Seiko 7183-398 represents an important milestone in Seiko's 1973 lineup. Powered by the 7183 caliber with 20j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-e58c89eac9d5]

Also known as: Tuna, Silverwave

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
11.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Green
Jewels
20j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1973

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