Seiko Cal. 3897 - 743

Seiko 3897-743

The Seiko 3897-743 represents an important milestone in Seiko's 1965 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-c7c4ba3b8ca5]

Also known as: Sumo

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
12.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
90m
Dial Color
Silver
Jewels
24j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1965

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