Seiko Cal. 6156 - 998

The Seiko 6156-998 represents an important milestone in Seiko's 1991 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-289c3810ffdc]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1991

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