Seiko Cal. 6157 - 687

Seiko 6157-687

The 6157-687 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6157 caliber with 21j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-ee34310df350]

Also known as: Monster, Bellmatic

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
43mm
Case Thickness
8.6mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
White
Jewels
21j
Frequency
36,000 bph
Power Reserve
38 hours
Year
1984

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