Seiko Cal. 6128 - 187

The 6128-187 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6128 caliber with 30j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-4518d0180f36]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1999

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