Seiko Cal. 3897 - 784

Seiko 3897-784

The 3897-784 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d5d1c63064ef]

Also known as: Bullhead, Rally

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
40mm
Case Thickness
8.5mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Champagne
Jewels
36j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1981

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