Seiko Cal. 5671 - 156

Seiko 5671-156

The Seiko 5671-156 represents an important milestone in Seiko's 1997 lineup. Powered by the 5671 caliber with 31j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-9eff29e62af9]

Also known as: Monster, Sumo

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
12.4mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Black
Jewels
31j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1997

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