Seiko Cal. 6311 - 487

This Quartz model from 1966 features a 46mm Two-Tone case. It features a Cream dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-989f50ca99a7]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1966

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