Seiko Cal. 3831 - 228

Seiko 3831-228

The Seiko 3831-228 represents an important milestone in Seiko's 1978 lineup. Powered by the 3831 caliber with 24j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-7b51ed16d50c]

Also known as: Tuna, Silverwave

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
40mm
Case Thickness
13.8mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Burgundy
Jewels
24j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1978

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seikata-wm-7b51ed16d50c