Seiko Cal. 6610 - 357

This Spring Drive model from 1988 features a 40mm Hardlex-Coated Steel case. It features a Silver dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-d5f2d66fd2a7]

Also known as: Bullhead, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1988

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