Seiko Cal. 5689 - 631

The Seiko 5689-631 represents an important milestone in Seiko's 1976 lineup. It features a Cream dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-67e43d1eb221]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1976

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