Seiko Cal. 7157 - 677

This Spring Drive model from 1999 features a 44mm Gold-Plated case. Powered by the 7157 caliber with 31j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-c9231a57d5e0]

Also known as: Monster, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1999

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