Seiko Cal. 6128 - 631

The Seiko 6128-631 represents an important milestone in Seiko's 1981 lineup. It features a Green dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-fd69d22ccfdd]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1981

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