Seiko Cal. 3898 - 733

Seiko 3898-733

The Seiko 3898-733 represents an important milestone in Seiko's 1969 lineup. Powered by the 3898 caliber with 28j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-ec3aae5f0f11]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
9.3mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
190m
Dial Color
Green
Jewels
28j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1969

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