Seiko Cal. 6331 - 277

The 6331-277 is a sought-after Quartz piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-353d9a838d79]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

19j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1986

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