Seiko Cal. 6131 - 989

The Seiko 6131-989 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-847e62bbd377]

Also known as: Monster, Pogue

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1977

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