Seiko Cal. 4491 - 397

Seiko 4491-397

The Seiko 4491-397 represents an important milestone in Seiko's 1987 lineup. Powered by the 4491 caliber with 36j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-2d6cb557aea6]

Also known as: Monster, UFO

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
42mm
Case Thickness
9.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Cream
Jewels
36j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1987

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