Seiko Cal. 5641 - 511

The Seiko 5641-511 represents an important milestone in Seiko's 1984 lineup. It features a Silver dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-6579e123eeab]

Also known as: Sumo, Crown

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1984

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