Seiko Cal. 5631 - 684

The 5631-684 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-f7c11f1fe925]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1999

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