Seiko Cal. 6657 - 329

This Spring Drive model from 1987 features a 39mm Two-Tone case. It features a White dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-5be9b615b631]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1987

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